* [Tarantool-patches] [PATCH v2 1/3] sql: improve "no such constraint" error message
2020-03-03 10:12 [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Roman Khabibov
@ 2020-03-03 10:12 ` Roman Khabibov
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 2/3] sql: don't select from _index during parsing Roman Khabibov
` (3 subsequent siblings)
4 siblings, 0 replies; 11+ messages in thread
From: Roman Khabibov @ 2020-03-03 10:12 UTC (permalink / raw)
To: v.shpilevoy; +Cc: tarantool-patches
Clarify the error message for better user handling. Add the name
of space where the constraint under dropping wasn't founded.
Part of #4120
---
src/box/errcode.h | 2 +-
src/box/sql/alter.c | 2 +-
src/box/sql/build.c | 24 +++++++++++++-----------
test/sql-tap/alter2.test.lua | 2 +-
test/sql/checks.result | 2 +-
5 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/src/box/errcode.h b/src/box/errcode.h
index cac8447e2..d7ec97e8c 100644
--- a/src/box/errcode.h
+++ b/src/box/errcode.h
@@ -221,7 +221,7 @@ struct errcode_record {
/*166 */_(ER_NO_SUCH_COLLATION, "Collation '%s' does not exist") \
/*167 */_(ER_CREATE_FK_CONSTRAINT, "Failed to create foreign key constraint '%s': %s") \
/*168 */_(ER_DROP_FK_CONSTRAINT, "Failed to drop foreign key constraint '%s': %s") \
- /*169 */_(ER_NO_SUCH_CONSTRAINT, "Constraint %s does not exist") \
+ /*169 */_(ER_NO_SUCH_CONSTRAINT, "Constraint '%s' does not exist in space '%s'") \
/*170 */_(ER_CONSTRAINT_EXISTS, "%s constraint '%s' already exists in space '%s'") \
/*171 */_(ER_SQL_TYPE_MISMATCH, "Type mismatch: can not convert %s to %s") \
/*172 */_(ER_ROWID_OVERFLOW, "Rowid is overflowed: too many entries in ephemeral space") \
diff --git a/src/box/sql/alter.c b/src/box/sql/alter.c
index 973b420cf..14f6c1a97 100644
--- a/src/box/sql/alter.c
+++ b/src/box/sql/alter.c
@@ -121,7 +121,7 @@ sql_alter_ck_constraint_enable(struct Parse *parse)
int addr = sqlVdbeAddOp4Int(v, OP_Found, cursor, 0, key_reg, 2);
sqlVdbeAddOp4(v, OP_SetDiag, ER_NO_SUCH_CONSTRAINT, 0, 0,
sqlMPrintf(db, tnt_errcode_desc(ER_NO_SUCH_CONSTRAINT),
- constraint_name), P4_DYNAMIC);
+ constraint_name, tbl_name), P4_DYNAMIC);
sqlVdbeAddOp2(v, OP_Halt, -1, ON_CONFLICT_ACTION_ABORT);
sqlVdbeJumpHere(v, addr);
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index bc50ecbfa..d9bf8de91 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -1476,21 +1476,21 @@ vdbe_emit_stat_space_clear(struct Parse *parse, const char *stat_table_name,
* @param constraint_name Name of FK constraint to be dropped.
* Must be allocated on head by sqlDbMalloc().
* It will be freed in VDBE.
- * @param child_id Id of table which constraint belongs to.
+ * @param child_def Def of table which constraint belongs to.
*/
static void
vdbe_emit_fk_constraint_drop(struct Parse *parse_context, char *constraint_name,
- uint32_t child_id)
+ struct space_def *child_def)
{
struct Vdbe *vdbe = sqlGetVdbe(parse_context);
assert(vdbe != NULL);
int key_reg = sqlGetTempRange(parse_context, 3);
sqlVdbeAddOp4(vdbe, OP_String8, 0, key_reg, 0, constraint_name,
P4_DYNAMIC);
- sqlVdbeAddOp2(vdbe, OP_Integer, child_id, key_reg + 1);
+ sqlVdbeAddOp2(vdbe, OP_Integer, child_def->id, key_reg + 1);
const char *error_msg =
tt_sprintf(tnt_errcode_desc(ER_NO_SUCH_CONSTRAINT),
- constraint_name);
+ constraint_name, child_def->name);
if (vdbe_emit_halt_with_presence_test(parse_context,
BOX_FK_CONSTRAINT_ID, 0,
key_reg, 2, ER_NO_SUCH_CONSTRAINT,
@@ -1510,21 +1510,22 @@ vdbe_emit_fk_constraint_drop(struct Parse *parse_context, char *constraint_name,
*
* @param parser Parsing context.
* @param ck_name Name of CK constraint to be dropped.
- * @param space_id Id of table which constraint belongs to.
+ * @param space_def Def of table which constraint belongs to.
*/
static void
vdbe_emit_ck_constraint_drop(struct Parse *parser, const char *ck_name,
- uint32_t space_id)
+ struct space_def *space_def)
{
struct Vdbe *v = sqlGetVdbe(parser);
struct sql *db = v->db;
assert(v != NULL);
int key_reg = sqlGetTempRange(parser, 3);
- sqlVdbeAddOp2(v, OP_Integer, space_id, key_reg);
+ sqlVdbeAddOp2(v, OP_Integer, space_def->id, key_reg);
sqlVdbeAddOp4(v, OP_String8, 0, key_reg + 1, 0,
sqlDbStrDup(db, ck_name), P4_DYNAMIC);
const char *error_msg =
- tt_sprintf(tnt_errcode_desc(ER_NO_SUCH_CONSTRAINT), ck_name);
+ tt_sprintf(tnt_errcode_desc(ER_NO_SUCH_CONSTRAINT), ck_name,
+ space_def->name);
if (vdbe_emit_halt_with_presence_test(parser, BOX_CK_CONSTRAINT_ID, 0,
key_reg, 2, ER_NO_SUCH_CONSTRAINT,
error_msg, false, OP_Found) != 0)
@@ -1658,14 +1659,15 @@ sql_code_drop_table(struct Parse *parse_context, struct space *space,
char *fk_name_dup = sqlDbStrDup(v->db, child_fk->def->name);
if (fk_name_dup == NULL)
return;
- vdbe_emit_fk_constraint_drop(parse_context, fk_name_dup, space_id);
+ vdbe_emit_fk_constraint_drop(parse_context, fk_name_dup,
+ space->def);
}
/* Delete all CK constraints. */
struct ck_constraint *ck_constraint;
rlist_foreach_entry(ck_constraint, &space->ck_constraint, link) {
vdbe_emit_ck_constraint_drop(parse_context,
ck_constraint->def->name,
- space_id);
+ space->def);
}
/*
* Drop all _space and _index entries that refer to the
@@ -2071,7 +2073,7 @@ sql_drop_foreign_key(struct Parse *parse_context)
return;
}
vdbe_emit_fk_constraint_drop(parse_context, constraint_name,
- child->def->id);
+ child->def);
/*
* We account changes to row count only if drop of
* foreign keys take place in a separate
diff --git a/test/sql-tap/alter2.test.lua b/test/sql-tap/alter2.test.lua
index 3e21a5f40..759acc9c3 100755
--- a/test/sql-tap/alter2.test.lua
+++ b/test/sql-tap/alter2.test.lua
@@ -256,7 +256,7 @@ test:do_catchsql_test(
ALTER TABLE child DROP CONSTRAINT fake;
]], {
-- <alter2-5.2>
- 1, "Constraint FAKE does not exist"
+ 1, "Constraint 'FAKE' does not exist in space 'CHILD'"
-- </alter2-5.2>
})
diff --git a/test/sql/checks.result b/test/sql/checks.result
index 4ae0b4c10..7b18e5d6b 100644
--- a/test/sql/checks.result
+++ b/test/sql/checks.result
@@ -801,7 +801,7 @@ box.execute('ALTER TABLE test ADD CONSTRAINT \"some_ck\" CHECK(a < 10);')
box.execute("ALTER TABLE test DISABLE CHECK CONSTRAINT \"falsch\"")
---
- null
-- Constraint falsch does not exist
+- Constraint 'falsch' does not exist in space 'TEST'
...
box.execute("ALTER TABLE test DISABLE CHECK CONSTRAINT \"some_ck\"")
---
--
2.21.0 (Apple Git-122)
^ permalink raw reply [flat|nested] 11+ messages in thread* [Tarantool-patches] [PATCH v2 2/3] sql: don't select from _index during parsing
2020-03-03 10:12 [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Roman Khabibov
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 1/3] sql: improve "no such constraint" error message Roman Khabibov
@ 2020-03-03 10:12 ` Roman Khabibov
2020-03-03 12:47 ` Roman Khabibov
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 3/3] sql: support constraint drop Roman Khabibov
` (2 subsequent siblings)
4 siblings, 1 reply; 11+ messages in thread
From: Roman Khabibov @ 2020-03-03 10:12 UTC (permalink / raw)
To: v.shpilevoy; +Cc: tarantool-patches
Remove function box_index_by_name() from parser to avoid selects
during parsing. Add the ability to choose index during VDBE code
compilation which will be used to find the tuple to drop from a
system space.
Needed for #4120
---
src/box/space.h | 15 +++++++++++
src/box/sql/build.c | 59 +++++++++++++++++++++++++++-----------------
src/box/sql/pragma.c | 8 ++----
src/box/sql/vdbe.c | 10 +++++---
4 files changed, 59 insertions(+), 33 deletions(-)
diff --git a/src/box/space.h b/src/box/space.h
index 9aea4e5be..28885d037 100644
--- a/src/box/space.h
+++ b/src/box/space.h
@@ -287,6 +287,21 @@ space_index(struct space *space, uint32_t id)
return NULL;
}
+/**
+ * Get index by index name.
+ * @return NULL if the index is not found.
+ */
+static inline struct index *
+space_index_by_name(struct space *space, const char *index_name)
+{
+ for(uint32_t i = 0; i < space->index_count; i++) {
+ struct index *index = space->index[i];
+ if (strcmp(index_name, index->def->name) == 0)
+ return index;
+ }
+ return NULL;
+}
+
/**
* Return true if the unique constraint must be checked for
* the index with the given id before inserting a tuple into
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index d9bf8de91..e0f690fc2 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -47,7 +47,6 @@
#include "sqlInt.h"
#include "vdbeInt.h"
#include "tarantoolInt.h"
-#include "box/box.h"
#include "box/ck_constraint.h"
#include "box/fk_constraint.h"
#include "box/sequence.h"
@@ -1469,6 +1468,40 @@ vdbe_emit_stat_space_clear(struct Parse *parse, const char *stat_table_name,
sql_table_delete_from(parse, src_list, where);
}
+/**
+ * Generate VDBE program to remove entry from _index space.
+ *
+ * @param parse_context Parsing context.
+ * @param name Index name.
+ * @param space_def Def of table which index belongs to.
+ * @param errcode Type of printing error: "no such index" or
+ * "no such constraint".
+ * @param if_exist True if there was <IF EXISTS> in the query.
+ */
+static void
+vdbe_emit_index_drop(struct Parse *parse_context, const char *name,
+ struct space_def *space_def, int errcode, bool if_exist)
+{
+ assert(errcode == ER_NO_SUCH_INDEX_NAME ||
+ errcode == ER_NO_SUCH_CONSTRAINT);
+ struct Vdbe *vdbe = sqlGetVdbe(parse_context);
+ assert(vdbe != NULL);
+ assert(parse_context->db != NULL);
+ int key_reg = sqlGetTempRange(parse_context, 3);
+ sqlVdbeAddOp2(vdbe, OP_Integer, space_def->id, key_reg);
+ sqlVdbeAddOp4(vdbe, OP_String8, 0, key_reg + 1, 0,
+ sqlDbStrDup(parse_context->db, name), P4_DYNAMIC);
+ const char *error_msg =
+ tt_sprintf(tnt_errcode_desc(errcode), name, space_def->name);
+ if (vdbe_emit_halt_with_presence_test(parse_context, BOX_INDEX_ID, 2,
+ key_reg, 2, errcode, error_msg,
+ if_exist, OP_Found) != 0)
+ return;
+ sqlVdbeAddOp3(vdbe, OP_MakeRecord, key_reg, 2, key_reg + 2);
+ sqlVdbeAddOp3(vdbe, OP_SDelete, BOX_INDEX_ID, key_reg + 2, 2);
+ sqlReleaseTempRange(parse_context, key_reg, 3);
+}
+
/**
* Generate VDBE program to remove entry from _fk_constraint space.
*
@@ -2695,29 +2728,9 @@ sql_drop_index(struct Parse *parse_context)
parse_context->is_aborted = true;
goto exit_drop_index;
}
- uint32_t index_id = box_index_id_by_name(space->def->id, index_name,
- strlen(index_name));
- if (index_id == BOX_ID_NIL) {
- if (!if_exists) {
- diag_set(ClientError, ER_NO_SUCH_INDEX_NAME,
- index_name, table_name);
- parse_context->is_aborted = true;
- }
- goto exit_drop_index;
- }
- /*
- * Generate code to remove entry from _index space
- * But firstly, delete statistics since schema
- * changes after DDL.
- */
- int record_reg = ++parse_context->nMem;
- int space_id_reg = ++parse_context->nMem;
- int index_id_reg = ++parse_context->nMem;
- sqlVdbeAddOp2(v, OP_Integer, space->def->id, space_id_reg);
- sqlVdbeAddOp2(v, OP_Integer, index_id, index_id_reg);
- sqlVdbeAddOp3(v, OP_MakeRecord, space_id_reg, 2, record_reg);
- sqlVdbeAddOp2(v, OP_SDelete, BOX_INDEX_ID, record_reg);
+ vdbe_emit_index_drop(parse_context, index_name, space->def,
+ ER_NO_SUCH_INDEX_NAME, if_exists);
sqlVdbeChangeP5(v, OPFLAG_NCHANGE);
exit_drop_index:
sqlSrcListDelete(db, table_list);
diff --git a/src/box/sql/pragma.c b/src/box/sql/pragma.c
index a77bf4b16..c15f2e0d1 100644
--- a/src/box/sql/pragma.c
+++ b/src/box/sql/pragma.c
@@ -33,7 +33,6 @@
* This file contains code used to implement the PRAGMA command.
*/
#include "box/index.h"
-#include "box/box.h"
#include "box/tuple.h"
#include "box/fk_constraint.h"
#include "box/schema.h"
@@ -192,12 +191,9 @@ sql_pragma_index_info(struct Parse *parse,
struct space *space = space_by_name(tbl_name);
if (space == NULL)
return;
- uint32_t iid = box_index_id_by_name(space->def->id, idx_name,
- strlen(idx_name));
- if (iid == BOX_ID_NIL)
+ struct index *idx = space_index_by_name(space, idx_name);
+ if (idx == NULL)
return;
- struct index *idx = space_index(space, iid);
- assert(idx != NULL);
parse->nMem = 6;
struct Vdbe *v = sqlGetVdbe(parse);
assert(v != NULL);
diff --git a/src/box/sql/vdbe.c b/src/box/sql/vdbe.c
index 620d74e66..912a10153 100644
--- a/src/box/sql/vdbe.c
+++ b/src/box/sql/vdbe.c
@@ -4460,11 +4460,12 @@ case OP_SInsert: {
break;
}
-/* Opcode: SDelete P1 P2 * * P5
- * Synopsis: space id = P1, key = r[P2]
+/* Opcode: SDelete P1 P2 P3 * P5
+ * Synopsis: space id = P1, key = r[P2], searching index id = P3
*
* This opcode is used only during DDL routine.
- * Delete entry with given key from system space.
+ * Delete entry with given key from system space. P3 is the index
+ * number by which to search for the key.
*
* If P5 is set to OPFLAG_NCHANGE, account overall changes
* made to database.
@@ -4472,13 +4473,14 @@ case OP_SInsert: {
case OP_SDelete: {
assert(pOp->p1 > 0);
assert(pOp->p2 >= 0);
+ assert(pOp->p3 >= 0);
pIn2 = &aMem[pOp->p2];
struct space *space = space_by_id(pOp->p1);
assert(space != NULL);
assert(space_is_system(space));
assert(p->errorAction == ON_CONFLICT_ACTION_ABORT);
- if (sql_delete_by_key(space, 0, pIn2->z, pIn2->n) != 0)
+ if (sql_delete_by_key(space, pOp->p3, pIn2->z, pIn2->n) != 0)
goto abort_due_to_error;
if (pOp->p5 & OPFLAG_NCHANGE)
p->nChange++;
--
2.21.0 (Apple Git-122)
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: [Tarantool-patches] [PATCH v2 2/3] sql: don't select from _index during parsing
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 2/3] sql: don't select from _index during parsing Roman Khabibov
@ 2020-03-03 12:47 ` Roman Khabibov
0 siblings, 0 replies; 11+ messages in thread
From: Roman Khabibov @ 2020-03-03 12:47 UTC (permalink / raw)
To: Vladislav Shpilevoy; +Cc: tarantool-patches
Don’t see the previous mail of this commit.
sql: don't select from _index during parsing
Remove function box_index_by_name() from parser to avoid selects
during parsing. Add the ability to choose index during VDBE code
compilation which will be used to find the tuple to drop from a
system space.
Needed for #4120
---
src/box/space.h | 19 +++++++++++
src/box/sql/build.c | 79 +++++++++++++++++++++-----------------------
src/box/sql/pragma.c | 8 ++---
src/box/sql/vdbe.c | 10 +++---
4 files changed, 64 insertions(+), 52 deletions(-)
diff --git a/src/box/space.h b/src/box/space.h
index 9aea4e5be..bbdd3ef70 100644
--- a/src/box/space.h
+++ b/src/box/space.h
@@ -287,6 +287,25 @@ space_index(struct space *space, uint32_t id)
return NULL;
}
+/**
+ * Get index by index name.
+ *
+ * @param space Space index belongs to.
+ * @param index_name Name of index to be found.
+ *
+ * @retval NULL if the index is not found.
+ */
+static inline struct index *
+space_index_by_name(struct space *space, const char *index_name)
+{
+ for(uint32_t i = 0; i < space->index_count; i++) {
+ struct index *index = space->index[i];
+ if (strcmp(index_name, index->def->name) == 0)
+ return index;
+ }
+ return NULL;
+}
+
/**
* Return true if the unique constraint must be checked for
* the index with the given id before inserting a tuple into
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index d9bf8de91..fef069640 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -47,7 +47,6 @@
#include "sqlInt.h"
#include "vdbeInt.h"
#include "tarantoolInt.h"
-#include "box/box.h"
#include "box/ck_constraint.h"
#include "box/fk_constraint.h"
#include "box/sequence.h"
@@ -116,24 +115,6 @@ sql_finish_coding(struct Parse *parse_context)
parse_context->is_aborted = true;
}
}
-/**
- * Find index by its name.
- *
- * @param space Space index belongs to.
- * @param name Name of index to be found.
- *
- * @retval NULL in case index doesn't exist.
- */
-static struct index *
-sql_space_index_by_name(struct space *space, const char *name)
-{
- for (uint32_t i = 0; i < space->index_count; ++i) {
- struct index *idx = space->index[i];
- if (strcmp(name, idx->def->name) == 0)
- return idx;
- }
- return NULL;
-}
bool
sql_space_column_is_in_pk(struct space *space, uint32_t column)
@@ -1469,6 +1450,40 @@ vdbe_emit_stat_space_clear(struct Parse *parse, const char *stat_table_name,
sql_table_delete_from(parse, src_list, where);
}
+/**
+ * Generate VDBE program to remove entry from _index space.
+ *
+ * @param parse_context Parsing context.
+ * @param name Index name.
+ * @param space_def Def of table which index belongs to.
+ * @param errcode Type of printing error: "no such index" or
+ * "no such constraint".
+ * @param if_exist True if there was <IF EXISTS> in the query.
+ */
+static void
+vdbe_emit_index_drop(struct Parse *parse_context, const char *name,
+ struct space_def *space_def, int errcode, bool if_exist)
+{
+ assert(errcode == ER_NO_SUCH_INDEX_NAME ||
+ errcode == ER_NO_SUCH_CONSTRAINT);
+ struct Vdbe *vdbe = sqlGetVdbe(parse_context);
+ assert(vdbe != NULL);
+ assert(parse_context->db != NULL);
+ int key_reg = sqlGetTempRange(parse_context, 3);
+ sqlVdbeAddOp2(vdbe, OP_Integer, space_def->id, key_reg);
+ sqlVdbeAddOp4(vdbe, OP_String8, 0, key_reg + 1, 0,
+ sqlDbStrDup(parse_context->db, name), P4_DYNAMIC);
+ const char *error_msg =
+ tt_sprintf(tnt_errcode_desc(errcode), name, space_def->name);
+ if (vdbe_emit_halt_with_presence_test(parse_context, BOX_INDEX_ID, 2,
+ key_reg, 2, errcode, error_msg,
+ if_exist, OP_Found) != 0)
+ return;
+ sqlVdbeAddOp3(vdbe, OP_MakeRecord, key_reg, 2, key_reg + 2);
+ sqlVdbeAddOp3(vdbe, OP_SDelete, BOX_INDEX_ID, key_reg + 2, 2);
+ sqlReleaseTempRange(parse_context, key_reg, 3);
+}
+
/**
* Generate VDBE program to remove entry from _fk_constraint space.
*
@@ -2401,7 +2416,7 @@ sql_create_index(struct Parse *parse) {
parse->is_aborted = true;
goto exit_create_index;
}
- if (sql_space_index_by_name(space, name) != NULL) {
+ if (space_index_by_name(space, name) != NULL) {
if (! create_entity_def->if_not_exist) {
diag_set(ClientError, ER_INDEX_EXISTS_IN_SPACE,
name, def->name);
@@ -2695,29 +2710,9 @@ sql_drop_index(struct Parse *parse_context)
parse_context->is_aborted = true;
goto exit_drop_index;
}
- uint32_t index_id = box_index_id_by_name(space->def->id, index_name,
- strlen(index_name));
- if (index_id == BOX_ID_NIL) {
- if (!if_exists) {
- diag_set(ClientError, ER_NO_SUCH_INDEX_NAME,
- index_name, table_name);
- parse_context->is_aborted = true;
- }
- goto exit_drop_index;
- }
- /*
- * Generate code to remove entry from _index space
- * But firstly, delete statistics since schema
- * changes after DDL.
- */
- int record_reg = ++parse_context->nMem;
- int space_id_reg = ++parse_context->nMem;
- int index_id_reg = ++parse_context->nMem;
- sqlVdbeAddOp2(v, OP_Integer, space->def->id, space_id_reg);
- sqlVdbeAddOp2(v, OP_Integer, index_id, index_id_reg);
- sqlVdbeAddOp3(v, OP_MakeRecord, space_id_reg, 2, record_reg);
- sqlVdbeAddOp2(v, OP_SDelete, BOX_INDEX_ID, record_reg);
+ vdbe_emit_index_drop(parse_context, index_name, space->def,
+ ER_NO_SUCH_INDEX_NAME, if_exists);
sqlVdbeChangeP5(v, OPFLAG_NCHANGE);
exit_drop_index:
sqlSrcListDelete(db, table_list);
diff --git a/src/box/sql/pragma.c b/src/box/sql/pragma.c
index a77bf4b16..c15f2e0d1 100644
--- a/src/box/sql/pragma.c
+++ b/src/box/sql/pragma.c
@@ -33,7 +33,6 @@
* This file contains code used to implement the PRAGMA command.
*/
#include "box/index.h"
-#include "box/box.h"
#include "box/tuple.h"
#include "box/fk_constraint.h"
#include "box/schema.h"
@@ -192,12 +191,9 @@ sql_pragma_index_info(struct Parse *parse,
struct space *space = space_by_name(tbl_name);
if (space == NULL)
return;
- uint32_t iid = box_index_id_by_name(space->def->id, idx_name,
- strlen(idx_name));
- if (iid == BOX_ID_NIL)
+ struct index *idx = space_index_by_name(space, idx_name);
+ if (idx == NULL)
return;
- struct index *idx = space_index(space, iid);
- assert(idx != NULL);
parse->nMem = 6;
struct Vdbe *v = sqlGetVdbe(parse);
assert(v != NULL);
diff --git a/src/box/sql/vdbe.c b/src/box/sql/vdbe.c
index 620d74e66..912a10153 100644
--- a/src/box/sql/vdbe.c
+++ b/src/box/sql/vdbe.c
@@ -4460,11 +4460,12 @@ case OP_SInsert: {
break;
}
-/* Opcode: SDelete P1 P2 * * P5
- * Synopsis: space id = P1, key = r[P2]
+/* Opcode: SDelete P1 P2 P3 * P5
+ * Synopsis: space id = P1, key = r[P2], searching index id = P3
*
* This opcode is used only during DDL routine.
- * Delete entry with given key from system space.
+ * Delete entry with given key from system space. P3 is the index
+ * number by which to search for the key.
*
* If P5 is set to OPFLAG_NCHANGE, account overall changes
* made to database.
@@ -4472,13 +4473,14 @@ case OP_SInsert: {
case OP_SDelete: {
assert(pOp->p1 > 0);
assert(pOp->p2 >= 0);
+ assert(pOp->p3 >= 0);
pIn2 = &aMem[pOp->p2];
struct space *space = space_by_id(pOp->p1);
assert(space != NULL);
assert(space_is_system(space));
assert(p->errorAction == ON_CONFLICT_ACTION_ABORT);
- if (sql_delete_by_key(space, 0, pIn2->z, pIn2->n) != 0)
+ if (sql_delete_by_key(space, pOp->p3, pIn2->z, pIn2->n) != 0)
goto abort_due_to_error;
if (pOp->p5 & OPFLAG_NCHANGE)
p->nChange++;
--
2.21.0 (Apple Git-122)
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Tarantool-patches] [PATCH v2 3/3] sql: support constraint drop
2020-03-03 10:12 [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Roman Khabibov
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 1/3] sql: improve "no such constraint" error message Roman Khabibov
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 2/3] sql: don't select from _index during parsing Roman Khabibov
@ 2020-03-03 10:12 ` Roman Khabibov
2020-03-03 22:13 ` [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Vladislav Shpilevoy
2020-03-04 21:09 ` Nikita Pettik
4 siblings, 0 replies; 11+ messages in thread
From: Roman Khabibov @ 2020-03-03 10:12 UTC (permalink / raw)
To: v.shpilevoy; +Cc: tarantool-patches
Extend <ALTER TABLE> statement to drop table constraints by their
names.
Closes #4120
@TarantoolBot document
Title: Drop table constraints in SQL
Now, it is possible to drop table constraints (PRIMARY KEY,
UNIQUE, FOREIGN KEY, CHECK) using
<ALTER TABLE table_name DROP CONSTRAINT constraint_name> statement
by their names.
For example:
tarantool> box.execute([[CREATE TABLE test (
a INTEGER PRIMARY KEY,
b INTEGER,
CONSTRAINT cnstr CHECK (a >= 0)
);]])
---
- row_count: 1
...
tarantool> box.execute('ALTER TABLE test DROP CONSTRAINT cnstr;')
---
- row_count: 1
...
The same for all the other constraints.
---
src/box/constraint_id.h | 1 +
src/box/sql/build.c | 66 +++++++++++++++++++----------
src/box/sql/parse.y | 4 +-
src/box/sql/parse_def.h | 11 ++---
src/box/sql/sqlInt.h | 7 +++-
test/sql/constraint.result | 81 ++++++++++++++++++++++++++++++++++++
test/sql/constraint.test.lua | 28 +++++++++++++
7 files changed, 167 insertions(+), 31 deletions(-)
diff --git a/src/box/constraint_id.h b/src/box/constraint_id.h
index 21f067cdc..ed4f37426 100755
--- a/src/box/constraint_id.h
+++ b/src/box/constraint_id.h
@@ -40,6 +40,7 @@ enum constraint_type {
CONSTRAINT_TYPE_UNIQUE,
CONSTRAINT_TYPE_FK,
CONSTRAINT_TYPE_CK,
+ constraint_type_MAX,
};
extern const char *constraint_type_strs[];
diff --git a/src/box/sql/build.c b/src/box/sql/build.c
index e0f690fc2..6fe8fbcdf 100644
--- a/src/box/sql/build.c
+++ b/src/box/sql/build.c
@@ -1507,18 +1507,18 @@ vdbe_emit_index_drop(struct Parse *parse_context, const char *name,
*
* @param parse_context Parsing context.
* @param constraint_name Name of FK constraint to be dropped.
- * Must be allocated on head by sqlDbMalloc().
- * It will be freed in VDBE.
* @param child_def Def of table which constraint belongs to.
*/
static void
-vdbe_emit_fk_constraint_drop(struct Parse *parse_context, char *constraint_name,
+vdbe_emit_fk_constraint_drop(struct Parse *parse_context,
+ const char *constraint_name,
struct space_def *child_def)
{
struct Vdbe *vdbe = sqlGetVdbe(parse_context);
assert(vdbe != NULL);
int key_reg = sqlGetTempRange(parse_context, 3);
- sqlVdbeAddOp4(vdbe, OP_String8, 0, key_reg, 0, constraint_name,
+ const char *name_copy = sqlDbStrDup(parse_context->db, constraint_name);
+ sqlVdbeAddOp4(vdbe, OP_String8, 0, key_reg, 0, name_copy,
P4_DYNAMIC);
sqlVdbeAddOp2(vdbe, OP_Integer, child_def->id, key_reg + 1);
const char *error_msg =
@@ -1528,10 +1528,8 @@ vdbe_emit_fk_constraint_drop(struct Parse *parse_context, char *constraint_name,
BOX_FK_CONSTRAINT_ID, 0,
key_reg, 2, ER_NO_SUCH_CONSTRAINT,
error_msg, false,
- OP_Found) != 0) {
- sqlDbFree(parse_context->db, constraint_name);
+ OP_Found) != 0)
return;
- }
sqlVdbeAddOp3(vdbe, OP_MakeRecord, key_reg, 2, key_reg + 2);
sqlVdbeAddOp2(vdbe, OP_SDelete, BOX_FK_CONSTRAINT_ID, key_reg + 2);
VdbeComment((vdbe, "Delete FK constraint %s", constraint_name));
@@ -1688,11 +1686,7 @@ sql_code_drop_table(struct Parse *parse_context, struct space *space,
struct fk_constraint *child_fk;
rlist_foreach_entry(child_fk, &space->child_fk_constraint,
in_child_space) {
-
- char *fk_name_dup = sqlDbStrDup(v->db, child_fk->def->name);
- if (fk_name_dup == NULL)
- return;
- vdbe_emit_fk_constraint_drop(parse_context, fk_name_dup,
+ vdbe_emit_fk_constraint_drop(parse_context, child_fk->def->name,
space->def);
}
/* Delete all CK constraints. */
@@ -2085,28 +2079,38 @@ fk_constraint_change_defer_mode(struct Parse *parse_context, bool is_deferred)
is_deferred;
}
+/**
+ * Emit code to drop the entry from _index or _ck_contstraint or
+ * _fk_constraint space corresponding with the constraint type.
+ */
void
-sql_drop_foreign_key(struct Parse *parse_context)
+sql_drop_constraint(struct Parse *parse_context)
{
- struct drop_entity_def *drop_def = &parse_context->drop_fk_def.base;
- assert(drop_def->base.entity_type == ENTITY_TYPE_FK);
+ struct drop_entity_def *drop_def =
+ &parse_context->drop_constraint_def.base;
+ assert(drop_def->base.entity_type == ENTITY_TYPE_CONSTRAINT);
assert(drop_def->base.alter_action == ALTER_ACTION_DROP);
const char *table_name = drop_def->base.entity_name->a[0].zName;
assert(table_name != NULL);
- struct space *child = space_by_name(table_name);
- if (child == NULL) {
+ struct space *space = space_by_name(table_name);
+ if (space == NULL) {
diag_set(ClientError, ER_NO_SUCH_SPACE, table_name);
parse_context->is_aborted = true;
return;
}
- char *constraint_name =
- sql_name_from_token(parse_context->db, &drop_def->name);
- if (constraint_name == NULL) {
+ char *name = sql_normalized_name_region_new(&parse_context->region,
+ drop_def->name.z,
+ drop_def->name.n);
+ if (name == NULL) {
+ parse_context->is_aborted = true;
+ return;
+ }
+ struct constraint_id *id = space_find_constraint_id(space, name);
+ if (id == NULL) {
+ diag_set(ClientError, ER_NO_SUCH_CONSTRAINT, name, table_name);
parse_context->is_aborted = true;
return;
}
- vdbe_emit_fk_constraint_drop(parse_context, constraint_name,
- child->def);
/*
* We account changes to row count only if drop of
* foreign keys take place in a separate
@@ -2114,6 +2118,24 @@ sql_drop_foreign_key(struct Parse *parse_context)
* DROP TABLE always returns 1 (one) as a row count.
*/
struct Vdbe *v = sqlGetVdbe(parse_context);
+ assert(v != NULL);
+ assert(id->type < constraint_type_MAX);
+ switch (id->type) {
+ case CONSTRAINT_TYPE_PK:
+ case CONSTRAINT_TYPE_UNIQUE: {
+ vdbe_emit_index_drop(parse_context, name, space->def,
+ ER_NO_SUCH_CONSTRAINT, false);
+ break;
+ }
+ case CONSTRAINT_TYPE_FK:
+ vdbe_emit_fk_constraint_drop(parse_context, name, space->def);
+ break;
+ case CONSTRAINT_TYPE_CK:
+ vdbe_emit_ck_constraint_drop(parse_context, name, space->def);
+ break;
+ default:
+ unreachable();
+ }
sqlVdbeCountChanges(v);
sqlVdbeChangeP5(v, OPFLAG_NCHANGE);
}
diff --git a/src/box/sql/parse.y b/src/box/sql/parse.y
index cfe1c0012..1a0e89703 100644
--- a/src/box/sql/parse.y
+++ b/src/box/sql/parse.y
@@ -1763,9 +1763,9 @@ cmd ::= alter_table_start(A) RENAME TO nm(N). {
}
cmd ::= ALTER TABLE fullname(X) DROP CONSTRAINT nm(Z). {
- drop_fk_def_init(&pParse->drop_fk_def, X, &Z, false);
+ drop_constraint_def_init(&pParse->drop_constraint_def, X, &Z, false);
pParse->initiateTTrans = true;
- sql_drop_foreign_key(pParse);
+ sql_drop_constraint(pParse);
}
cmd ::= alter_table_start(A) enable(E) CHECK CONSTRAINT nm(Z). {
diff --git a/src/box/sql/parse_def.h b/src/box/sql/parse_def.h
index 2f433e4c0..cb0ecd2fc 100644
--- a/src/box/sql/parse_def.h
+++ b/src/box/sql/parse_def.h
@@ -265,7 +265,7 @@ struct drop_trigger_def {
struct drop_entity_def base;
};
-struct drop_fk_def {
+struct drop_constraint_def {
struct drop_entity_def base;
};
@@ -408,11 +408,12 @@ drop_trigger_def_init(struct drop_trigger_def *drop_trigger_def,
}
static inline void
-drop_fk_def_init(struct drop_fk_def *drop_fk_def, struct SrcList *parent_name,
- struct Token *name, bool if_exist)
+drop_constraint_def_init(struct drop_constraint_def *drop_constraint_def,
+ struct SrcList *parent_name, struct Token *name,
+ bool if_exist)
{
- drop_entity_def_init(&drop_fk_def->base, parent_name, name, if_exist,
- ENTITY_TYPE_FK);
+ drop_entity_def_init(&drop_constraint_def->base, parent_name, name,
+ if_exist, ENTITY_TYPE_CONSTRAINT);
}
static inline void
diff --git a/src/box/sql/sqlInt.h b/src/box/sql/sqlInt.h
index d1fcf4761..1579cc92e 100644
--- a/src/box/sql/sqlInt.h
+++ b/src/box/sql/sqlInt.h
@@ -2237,7 +2237,7 @@ struct Parse {
struct create_trigger_def create_trigger_def;
struct create_view_def create_view_def;
struct rename_entity_def rename_entity_def;
- struct drop_fk_def drop_fk_def;
+ struct drop_constraint_def drop_constraint_def;
struct drop_index_def drop_index_def;
struct drop_table_def drop_table_def;
struct drop_trigger_def drop_trigger_def;
@@ -3741,13 +3741,16 @@ void
sql_create_foreign_key(struct Parse *parse_context);
/**
+ * Emit code to drop the entry from _index or _ck_contstraint or
+ * _fk_constraint space corresponding with the constraint type.
+ *
* Function called from parser to handle
* <ALTER TABLE table DROP CONSTRAINT constraint> SQL statement.
*
* @param parse_context Parsing context.
*/
void
-sql_drop_foreign_key(struct Parse *parse_context);
+sql_drop_constraint(struct Parse *parse_context);
/**
* Now our SQL implementation can't operate on spaces which
diff --git a/test/sql/constraint.result b/test/sql/constraint.result
index 1585c2327..bcdc46a1c 100644
--- a/test/sql/constraint.result
+++ b/test/sql/constraint.result
@@ -291,6 +291,87 @@ box.execute('CREATE UNIQUE INDEX d ON t2(i);')
| - Index 'D' already exists in space 'T2'
| ...
+--
+-- gh-4120: Ensure that <ALTER TABLE DROP CONSTRAINT> works
+-- correctly for each type of constraint.
+--
+-- Drop non-constraint object (non-unique index).
+box.execute('CREATE INDEX non_constraint ON t2(i);')
+ | ---
+ | - row_count: 1
+ | ...
+box.execute('ALTER TABLE t2 DROP CONSTRAINT non_constraint;')
+ | ---
+ | - null
+ | - Constraint 'NON_CONSTRAINT' does not exist in space 'T2'
+ | ...
+-- Drop UNIQUE constraint.
+box.space.T2.index.E ~= nil
+ | ---
+ | - true
+ | ...
+box.execute('ALTER TABLE t2 DROP CONSTRAINT e;')
+ | ---
+ | - row_count: 1
+ | ...
+box.space.T2.index.E == nil
+ | ---
+ | - true
+ | ...
+-- Drop PRIMARY KEY constraint named "C".
+box.execute('DROP INDEX non_constraint ON t2;')
+ | ---
+ | - row_count: 1
+ | ...
+box.execute('DROP INDEX d ON t2;')
+ | ---
+ | - row_count: 1
+ | ...
+box.space.T2.index.C ~= nil
+ | ---
+ | - true
+ | ...
+box.execute('ALTER TABLE t2 DROP CONSTRAINT c;')
+ | ---
+ | - row_count: 1
+ | ...
+box.space.T2.index.C == nil
+ | ---
+ | - true
+ | ...
+-- Drop CHECK constraint.
+box.execute('ALTER TABLE t2 ADD CONSTRAINT ck_constraint CHECK(i > 0);')
+ | ---
+ | - row_count: 1
+ | ...
+box.space.T2.ck_constraint.CK_CONSTRAINT ~= nil
+ | ---
+ | - true
+ | ...
+box.execute('ALTER TABLE t2 DROP CONSTRAINT ck_constraint;')
+ | ---
+ | - row_count: 1
+ | ...
+box.space.T2.ck_constraint.CK_CONSTRAINT == nil
+ | ---
+ | - true
+ | ...
+-- Drop FOREIGN KEY constraint.
+box.execute('ALTER TABLE t2 ADD CONSTRAINT fk FOREIGN KEY(i) REFERENCES t1(i);')
+ | ---
+ | - row_count: 1
+ | ...
+box.execute('ALTER TABLE t2 DROP CONSTRAINT fk;')
+ | ---
+ | - row_count: 1
+ | ...
+-- Drop non-existing constraint.
+box.execute('ALTER TABLE t2 DROP CONSTRAINT non_existing_constraint;')
+ | ---
+ | - null
+ | - Constraint 'NON_EXISTING_CONSTRAINT' does not exist in space 'T2'
+ | ...
+
--
-- Cleanup.
--
diff --git a/test/sql/constraint.test.lua b/test/sql/constraint.test.lua
index 163f4309c..a9fa4ccc9 100755
--- a/test/sql/constraint.test.lua
+++ b/test/sql/constraint.test.lua
@@ -131,6 +131,34 @@ box.execute('CREATE UNIQUE INDEX e ON t2(i);')
-- uniqueness, index names should be unique in a space.
box.execute('CREATE UNIQUE INDEX d ON t2(i);')
+--
+-- gh-4120: Ensure that <ALTER TABLE DROP CONSTRAINT> works
+-- correctly for each type of constraint.
+--
+-- Drop non-constraint object (non-unique index).
+box.execute('CREATE INDEX non_constraint ON t2(i);')
+box.execute('ALTER TABLE t2 DROP CONSTRAINT non_constraint;')
+-- Drop UNIQUE constraint.
+box.space.T2.index.E ~= nil
+box.execute('ALTER TABLE t2 DROP CONSTRAINT e;')
+box.space.T2.index.E == nil
+-- Drop PRIMARY KEY constraint named "C".
+box.execute('DROP INDEX non_constraint ON t2;')
+box.execute('DROP INDEX d ON t2;')
+box.space.T2.index.C ~= nil
+box.execute('ALTER TABLE t2 DROP CONSTRAINT c;')
+box.space.T2.index.C == nil
+-- Drop CHECK constraint.
+box.execute('ALTER TABLE t2 ADD CONSTRAINT ck_constraint CHECK(i > 0);')
+box.space.T2.ck_constraint.CK_CONSTRAINT ~= nil
+box.execute('ALTER TABLE t2 DROP CONSTRAINT ck_constraint;')
+box.space.T2.ck_constraint.CK_CONSTRAINT == nil
+-- Drop FOREIGN KEY constraint.
+box.execute('ALTER TABLE t2 ADD CONSTRAINT fk FOREIGN KEY(i) REFERENCES t1(i);')
+box.execute('ALTER TABLE t2 DROP CONSTRAINT fk;')
+-- Drop non-existing constraint.
+box.execute('ALTER TABLE t2 DROP CONSTRAINT non_existing_constraint;')
+
--
-- Cleanup.
--
--
2.21.0 (Apple Git-122)
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints
2020-03-03 10:12 [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Roman Khabibov
` (2 preceding siblings ...)
2020-03-03 10:12 ` [Tarantool-patches] [PATCH v2 3/3] sql: support constraint drop Roman Khabibov
@ 2020-03-03 22:13 ` Vladislav Shpilevoy
2020-03-05 6:32 ` Kirill Yukhin
2020-03-04 21:09 ` Nikita Pettik
4 siblings, 1 reply; 11+ messages in thread
From: Vladislav Shpilevoy @ 2020-03-03 22:13 UTC (permalink / raw)
To: Roman Khabibov; +Cc: tarantool-patches
Hi! Thanks for the patchset!
On 03/03/2020 11:12, Roman Khabibov wrote:
> @ChangeLog
> - Add ability to drop any table constraint with
> <ALTER TABLE ... DROP CONSTRAINT ...>.
> - Display table name in "no such constraint" error message.
Almost ok. But template is different:
@ChangeLog
- Text description,
probably multiline (gh-####).
Also you seem to be very consistent with forgetting to put issue
and branch links to your patchsets. Please, create a text document
with a list of things to check before sending a patch (issue and
branch links, changelog, check that the branch is pushed, etc),
save it somewhere, and look at it before a send. I have such
document, and it helps sometimes.
LGTM.
Nikita, your turn.
> Roman Khabibov (3):
> sql: improve "no such constraint" error message
> sql: don't select from _index during parsing
> sql: support constraint drop
>
> src/box/constraint_id.h | 1 +
> src/box/errcode.h | 2 +-
> src/box/space.h | 15 ++++
> src/box/sql/alter.c | 2 +-
> src/box/sql/build.c | 145 ++++++++++++++++++++++-------------
> src/box/sql/parse.y | 4 +-
> src/box/sql/parse_def.h | 11 +--
> src/box/sql/pragma.c | 8 +-
> src/box/sql/sqlInt.h | 7 +-
> src/box/sql/vdbe.c | 10 ++-
> test/sql-tap/alter2.test.lua | 2 +-
> test/sql/checks.result | 2 +-
> test/sql/constraint.result | 81 +++++++++++++++++++
> test/sql/constraint.test.lua | 28 +++++++
> 14 files changed, 241 insertions(+), 77 deletions(-)
>
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints
2020-03-03 22:13 ` [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Vladislav Shpilevoy
@ 2020-03-05 6:32 ` Kirill Yukhin
0 siblings, 0 replies; 11+ messages in thread
From: Kirill Yukhin @ 2020-03-05 6:32 UTC (permalink / raw)
To: Vladislav Shpilevoy; +Cc: tarantool-patches
Hello,
On 03 мар 23:13, Vladislav Shpilevoy wrote:
> Hi! Thanks for the patchset!
>
> On 03/03/2020 11:12, Roman Khabibov wrote:
> > @ChangeLog
> > - Add ability to drop any table constraint with
> > <ALTER TABLE ... DROP CONSTRAINT ...>.
> > - Display table name in "no such constraint" error message.
>
> Almost ok. But template is different:
>
> @ChangeLog
> - Text description,
> probably multiline (gh-####).
And please, no line breaks.
--
Regards, Kirill Yukhin
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints
2020-03-03 10:12 [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Roman Khabibov
` (3 preceding siblings ...)
2020-03-03 22:13 ` [Tarantool-patches] [PATCH v2 0/3] Add ability to drop constraints Vladislav Shpilevoy
@ 2020-03-04 21:09 ` Nikita Pettik
4 siblings, 0 replies; 11+ messages in thread
From: Nikita Pettik @ 2020-03-04 21:09 UTC (permalink / raw)
To: Roman Khabibov; +Cc: tarantool-patches, v.shpilevoy
On 03 Mar 13:12, Roman Khabibov wrote:
> @ChangeLog
> - Add ability to drop any table constraint with
> <ALTER TABLE ... DROP CONSTRAINT ...>.
> - Display table name in "no such constraint" error message.
Pushed to master, updated changelog. Thanks.
> Roman Khabibov (3):
> sql: improve "no such constraint" error message
> sql: don't select from _index during parsing
> sql: support constraint drop
>
> src/box/constraint_id.h | 1 +
> src/box/errcode.h | 2 +-
> src/box/space.h | 15 ++++
> src/box/sql/alter.c | 2 +-
> src/box/sql/build.c | 145 ++++++++++++++++++++++-------------
> src/box/sql/parse.y | 4 +-
> src/box/sql/parse_def.h | 11 +--
> src/box/sql/pragma.c | 8 +-
> src/box/sql/sqlInt.h | 7 +-
> src/box/sql/vdbe.c | 10 ++-
> test/sql-tap/alter2.test.lua | 2 +-
> test/sql/checks.result | 2 +-
> test/sql/constraint.result | 81 +++++++++++++++++++
> test/sql/constraint.test.lua | 28 +++++++
> 14 files changed, 241 insertions(+), 77 deletions(-)
>
> --
> 2.21.0 (Apple Git-122)
>
^ permalink raw reply [flat|nested] 11+ messages in thread