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From: Stanislav Zudin <szudin@tarantool.org>
To: tarantool-patches@freelists.org
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Subject: Re: [tarantool-patches] Re: [PATCH v2] sql: Duplicate key error for a non-unique index
Date: Thu, 28 Feb 2019 17:17:13 +0300	[thread overview]
Message-ID: <3e9f77a3-62d7-1619-fc43-7d6d9b300031@tarantool.org> (raw)
In-Reply-To: <20190226132625.4bsl5p27m4rgoizi@esperanza>

The recent patch includes the suggested changes, see the comments inline.

On 26.02.2019 16:26, Vladimir Davydov wrote:
> On Wed, Feb 20, 2019 at 01:06:10PM +0300, Stanislav Zudin wrote:
>> Adds collation analysis into creating of a composite key for
>> index tuples.
>> The keys of secondary index consist of parts defined for index itself
>> combined with parts defined for primary key.
>> The duplicate parts are ignored. But the search of duplicates didn't
>> take the collation into consideration.
>> If non-unique secondary index contained primary key columns their
>> parts from the primary key were omitted. This fact caused an issue.
>>
>> Closes #3537
>> ---
>> Branch:https://github.com/tarantool/tarantool/tree/stanztt/gh-3537-nonunique-index-dup-key-error
>> Issue:https://github.com/tarantool/tarantool/issues/3537
> Whenever you resubmit a patch, please write a brief change log here.
> For more details see
>
> https://tarantool.io/en/doc/1.10/dev_guide/developer_guidelines/#how-to-submit-a-patch-for-review
>
>>   src/box/key_def.c           |  51 +++++-
>>   src/coll.c                  |   1 +
>>   src/coll.h                  |   2 +
>>   test/sql/collation.result   | 330 ++++++++++++++++++++++++++++++++++++
>>   test/sql/collation.test.lua | 123 ++++++++++++++
>>   5 files changed, 500 insertions(+), 7 deletions(-)
>>
>> diff --git a/src/box/key_def.c b/src/box/key_def.c
>> index 9411ade39..9814d6df0 100644
>> --- a/src/box/key_def.c
>> +++ b/src/box/key_def.c
>> @@ -37,6 +37,7 @@
>>   #include "schema_def.h"
>>   #include "coll_id_cache.h"
>>   #include "small/region.h"
>> +#include "coll.h"
>>   
>>   const char *sort_order_strs[] = { "asc", "desc", "undef" };
>>   
>> @@ -596,12 +597,11 @@ key_def_find_by_fieldno(const struct key_def *key_def, uint32_t fieldno)
>>   	return key_def_find(key_def, &part);
>>   }
>>   
>> -const struct key_part *
>> -key_def_find(const struct key_def *key_def, const struct key_part *to_find)
>> +static const struct key_part *
>> +key_def_find_next(const struct key_part *part, const struct key_part *end,
>> +		  const struct key_part *to_find)
>>   {
>> -	const struct key_part *part = key_def->parts;
>> -	const struct key_part *end = part + key_def->part_count;
>> -	for (; part != end; part++) {
>> +	for(; part != end; part++) {
>>   		if (part->fieldno == to_find->fieldno &&
>>   		    json_path_cmp(part->path, part->path_len,
>>   				  to_find->path, to_find->path_len,
>> @@ -611,6 +611,43 @@ key_def_find(const struct key_def *key_def, const struct key_part *to_find)
>>   	return NULL;
>>   }
>>   
>> +static bool
>> +key_def_need_merge(const struct key_def *sec_key_def,
>> +		   const struct key_part *pk_key_part)
> Please don't use secondary/primary in argument names/comments,
> because key_def_merge doesn't. This creates inconsistency leading
> to confusion. Let's just assume that this function checks whether
> an arbitrary key part can be merged into an arbitrary key def.
fixed.
>> +{
>> +	const struct key_part* end = sec_key_def->parts +
> Nit: we always put * closer to the variable name, not type. Please fix.
>
>> +				     sec_key_def->part_count;
>> +	const struct key_part* part = key_def_find_next(sec_key_def->parts,
>> +							end,
>> +							pk_key_part);
>> +	if (part == NULL)
>> +		return true;
> The function name sounds like it should return true if the given key
> part needs to be merged into the given key def, but actually it return
> false in this case. Also, IMO key_def_can_merge would be a better name.
ok
>> +
>> +	/* The duplicate key_part is found,
>> +	 * compare collation */
> Nit: we always format multline comments like
>
> /*
>   * This is a very long
>   * comment.
>   */
>
> Please fix.
>
>> +	if (part->coll == pk_key_part->coll)
>> +		return false;
>> +
>> +	if (part->coll == NULL ||
>> +	    part->coll->strength == COLL_ICU_STRENGTH_DEFAULT) {
>> +		return false;
>> +		/* If collation of the sec. key part
> 'sec' doesn't look like a common abbreviation for secondary.
>
>> +		 * is binary then the sec. key
>> +		 * doesn't require a composite key.
>> +		 * */
> This comment is pretty much useless, because it follows directly from
> the code surrounding it. Please explain *why* you're doing it rather
> than *what* you're doing.
i've removed this comment.
> Perhaps, it's worth encapsulating this logic in a helper function
> defined in coll.c. Something like coll_is_compatible.
This case is not a general one, so it doesn't deserve to be implemented 
as a generic helper function.
>> +	} else
>> +		return true;
>> +}
>> +
>> +const struct key_part *
>> +key_def_find(const struct key_def *key_def, const struct key_part *to_find)
>> +{
>> +	/* find the first match */
>> +	return key_def_find_next(key_def->parts,
>> +				 key_def->parts + key_def->part_count,
>> +				 to_find);
> Why did you factor key_def_find_next out of key_def_find? AFAIU you
> could as well use key_def_find directly in key_def_need_merge, no?
The current functions are result of several consecutive// improvements 
included previous review.
Fixed.
>> +}
>> +
>>   bool
>>   key_def_contains(const struct key_def *first, const struct key_def *second)
>>   {
>> @@ -639,7 +676,7 @@ key_def_merge(const struct key_def *first, const struct key_def *second)
>>   	part = second->parts;
>>   	end = part + second->part_count;
>>   	for (; part != end; part++) {
>> -		if (key_def_find(first, part) != NULL)
>> +		if (!key_def_need_merge(first, part))
>>   			--new_part_count;
>>   		else
>>   			sz += part->path_len;
>> @@ -677,7 +714,7 @@ key_def_merge(const struct key_def *first, const struct key_def *second)
>>   	part = second->parts;
>>   	end = part + second->part_count;
>>   	for (; part != end; part++) {
>> -		if (key_def_find(first, part) != NULL)
>> +		if (!key_def_need_merge(first, part))
>>   			continue;
>>   		key_def_set_part(new_def, pos++, part->fieldno, part->type,
>>   				 part->nullable_action, part->coll,
>> diff --git a/src/coll.c b/src/coll.c
>> index 6d9c44dbf..8f9dcbac2 100644
>> --- a/src/coll.c
>> +++ b/src/coll.c
>> @@ -320,6 +320,7 @@ coll_new(const struct coll_def *def)
>>   	}
>>   	memcpy((char *) coll->fingerprint, fingerprint, fingerprint_len + 1);
>>   	coll->refs = 1;
>> +	coll->strength = def->icu.strength;
>>   	coll->type = def->type;
>>   	switch (coll->type) {
>>   	case COLL_TYPE_ICU:
>> diff --git a/src/coll.h b/src/coll.h
>> index 9c725712a..2412f8032 100644
>> --- a/src/coll.h
>> +++ b/src/coll.h
>> @@ -56,6 +56,8 @@ struct UCollator;
>>   struct coll {
>>   	/** Collation type. */
>>   	enum coll_type type;
>> +	/** Strength ICU settings */
>> +	enum coll_icu_strength strength;
> Do we really need it to add strengh here? Can't we extract it from the
> collator?

implemented a function to retrieve the collation strength.

>>   	/** ICU collation specific data. */
>>   	struct UCollator *collator;
>>   	/** String comparator. */

The updated patch is below:

---
Branch: 
https://github.com/tarantool/tarantool/tree/stanztt/gh-3537-nonunique-index-dup-key-error
Issue: https://github.com/tarantool/tarantool/issues/3537

  src/CMakeLists.txt          |   3 +-
  src/box/key_def.c           |  29 +++-
  src/coll.c                  |  38 +++++
  src/coll.h                  |   4 +
  test/sql/collation.result   | 330 ++++++++++++++++++++++++++++++++++++
  test/sql/collation.test.lua | 123 ++++++++++++++
  6 files changed, 524 insertions(+), 3 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 04de5ad04..7346e7ba7 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -125,7 +125,8 @@ target_link_libraries(core
      ${LIBEIO_LIBRARIES}
      ${LIBCORO_LIBRARIES}
      ${MSGPUCK_LIBRARIES}
-    ${generic_libraries})
+    ${generic_libraries}
+    ${ICU_LIBRARIES})

  add_library(stat STATIC rmean.c latency.c histogram.c)
  target_link_libraries(stat core)
diff --git a/src/box/key_def.c b/src/box/key_def.c
index 9411ade39..61b0258b2 100644
--- a/src/box/key_def.c
+++ b/src/box/key_def.c
@@ -37,6 +37,7 @@
  #include "schema_def.h"
  #include "coll_id_cache.h"
  #include "small/region.h"
+#include "coll.h"

  const char *sort_order_strs[] = { "asc", "desc", "undef" };

@@ -611,6 +612,30 @@ key_def_find(const struct key_def *key_def, const 
struct key_part *to_find)
      return NULL;
  }

+static bool
+key_def_can_merge(const struct key_def *first_key_def,
+    const struct key_part *second_key_part)
+{
+    const struct key_part *part = key_def_find(first_key_def,
+                           second_key_part);
+    if (part == NULL)
+        return true;
+
+    /*
+     * The duplicate key_part is found,
+     * compare collation
+     */
+    if (part->coll == second_key_part->coll)
+        return false;
+
+    if (part->coll == NULL ||
+        /*part->coll->strength == COLL_ICU_STRENGTH_DEFAULT)*/
+        coll_get_strength(part->coll) == COLL_ICU_STRENGTH_DEFAULT)
+        return false;
+    else
+        return true;
+}
+
  bool
  key_def_contains(const struct key_def *first, const struct key_def 
*second)
  {
@@ -639,7 +664,7 @@ key_def_merge(const struct key_def *first, const 
struct key_def *second)
      part = second->parts;
      end = part + second->part_count;
      for (; part != end; part++) {
-        if (key_def_find(first, part) != NULL)
+        if (!key_def_can_merge(first, part))
              --new_part_count;
          else
              sz += part->path_len;
@@ -677,7 +702,7 @@ key_def_merge(const struct key_def *first, const 
struct key_def *second)
      part = second->parts;
      end = part + second->part_count;
      for (; part != end; part++) {
-        if (key_def_find(first, part) != NULL)
+        if (!key_def_can_merge(first, part))
              continue;
          key_def_set_part(new_def, pos++, part->fieldno, part->type,
                   part->nullable_action, part->coll,
diff --git a/src/coll.c b/src/coll.c
index 6d9c44dbf..7d7267d8a 100644
--- a/src/coll.c
+++ b/src/coll.c
@@ -295,6 +295,44 @@ coll_def_snfingerprint(char *buffer, int size, 
const struct coll_def *def)
      return total;
  }

+static enum coll_icu_strength
+cast_coll_strength(UCollationStrength s)
+{
+    enum coll_icu_strength res = COLL_ICU_STRENGTH_DEFAULT;
+
+    switch(s) {
+    case UCOL_PRIMARY:
+        res = COLL_ICU_STRENGTH_PRIMARY;
+        break;
+    case UCOL_SECONDARY:
+        res = COLL_ICU_STRENGTH_SECONDARY;
+        break;
+    case UCOL_TERTIARY:
+        res = COLL_ICU_STRENGTH_TERTIARY;
+        break;
+    case UCOL_QUATERNARY:
+        res = COLL_ICU_STRENGTH_QUATERNARY;
+        break;
+    case UCOL_IDENTICAL:
+        res = COLL_ICU_STRENGTH_IDENTICAL;
+        break;
+    default:
+        break;
+    }
+
+    return res;
+}
+
+/*enum coll_icu_strength*/
+enum coll_icu_strength
+coll_get_strength(const struct coll *coll)
+{
+    if (coll->collator == NULL)
+        return COLL_ICU_STRENGTH_DEFAULT;
+    else
+        return cast_coll_strength(ucol_getStrength(coll->collator));
+}
+
  struct coll *
  coll_new(const struct coll_def *def)
  {
diff --git a/src/coll.h b/src/coll.h
index 9c725712a..8f65b73dd 100644
--- a/src/coll.h
+++ b/src/coll.h
@@ -70,6 +70,10 @@ struct coll {
      const char fingerprint[0];
  };

+/** Retrieve strength of the given collation */
+enum coll_icu_strength
+coll_get_strength(const struct coll *coll);
+
  /**
   * Create a collation by definition. Can return an existing
   * collation object, if a one with the same fingerprint was
diff --git a/test/sql/collation.result b/test/sql/collation.result
index 5721ef854..6cccbc84b 100644
--- a/test/sql/collation.result
+++ b/test/sql/collation.result
@@ -325,3 +325,333 @@ box.sql.execute("DROP TABLE t1;")
  box.sql.execute("DROP TABLE t0;")
  ---
  ...
+-- gh-3537 Duplicate key error for an index that is not unique
+-- pk - default, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3 (s1 CHAR(5) PRIMARY KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3 ON t3 (s1 collate "unicode_ci");')
+---
+...
+box.sql.execute("INSERT INTO t3 VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3 VALUES ('A');")
+---
+...
+box.sql.execute("SELECT * FROM t3;")
+---
+- - ['A']
+  - ['a']
+...
+box.sql.execute("DROP TABLE t3;")
+---
+...
+-- pk - binary, sc - unicode
+box.sql.execute('CREATE TABLE t3b (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3b ON t3b (s1 collate "unicode");')
+---
+...
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3b VALUES ('A');")
+---
+...
+box.sql.execute("SELECT * FROM t3b;")
+---
+- - ['A']
+  - ['a']
+...
+box.sql.execute("DROP TABLE t3b;")
+---
+...
+-- pk - binary, sc - unicode (make dup)
+box.sql.execute('CREATE TABLE t3b (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3b ON t3b (s1 collate "unicode");')
+---
+...
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3b VALUES ('A');")
+---
+...
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3B_1' in 
space 'T3B'
+...
+box.sql.execute("SELECT * FROM t3b;")
+---
+- - ['A']
+  - ['a']
+...
+box.sql.execute("DROP TABLE t3b;")
+---
+...
+-- pk - unicode, sc - binary
+box.sql.execute('CREATE TABLE t3c (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3c ON t3c (s1 collate "binary");')
+---
+...
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3c VALUES ('A');")
+---
+...
+box.sql.execute("SELECT * FROM t3c;")
+---
+- - ['a']
+  - ['A']
+...
+box.sql.execute("DROP TABLE t3c;")
+---
+...
+-- pk - unicode, sc - binary (make dup)
+box.sql.execute('CREATE TABLE t3c (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3c ON t3c (s1 collate "binary");')
+---
+...
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3c VALUES ('A');")
+---
+...
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3C_1' in 
space 'T3C'
+...
+box.sql.execute("SELECT * FROM t3c;")
+---
+- - ['a']
+  - ['A']
+...
+box.sql.execute("DROP TABLE t3c;")
+---
+...
+-- pk - binary, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3d (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3d ON t3d (s1 collate "unicode_ci");')
+---
+...
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3d VALUES ('A');")
+---
+...
+box.sql.execute("SELECT * FROM t3d;")
+---
+- - ['A']
+  - ['a']
+...
+box.sql.execute("DROP TABLE t3d;")
+---
+...
+-- pk - binary, sc - unicode_ci (make dup)
+box.sql.execute('CREATE TABLE t3d (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3d ON t3d (s1 collate "unicode_ci");')
+---
+...
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3d VALUES ('A');")
+---
+...
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3D_1' in 
space 'T3D'
+...
+box.sql.execute("SELECT * FROM t3d;")
+---
+- - ['A']
+  - ['a']
+...
+box.sql.execute("DROP TABLE t3d;")
+---
+...
+-- pk - unicode_ci, sc - binary (should fail)
+box.sql.execute('CREATE TABLE t3e (s1 CHAR(5) collate "unicode_ci" 
PRIMARY KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3e ON t3e (s1 collate "binary");')
+---
+...
+box.sql.execute("INSERT INTO t3e VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3e VALUES ('A');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3E_1' in 
space 'T3E'
+...
+box.sql.execute("SELECT * FROM t3e;")
+---
+- - ['a']
+...
+box.sql.execute("DROP TABLE t3e;")
+---
+...
+-- pk - unicode, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3f (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3f ON t3f (s1 collate "unicode_ci");')
+---
+...
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3f VALUES ('A');")
+---
+...
+box.sql.execute("SELECT * FROM t3f;")
+---
+- - ['a']
+  - ['A']
+...
+box.sql.execute("DROP TABLE t3f;")
+---
+...
+-- pk - unicode, sc - unicode_ci (make dup)
+box.sql.execute('CREATE TABLE t3f (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3f ON t3f (s1 collate "unicode_ci");')
+---
+...
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3f VALUES ('A');")
+---
+...
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3F_1' in 
space 'T3F'
+...
+box.sql.execute("SELECT * FROM t3f;")
+---
+- - ['a']
+  - ['A']
+...
+box.sql.execute("DROP TABLE t3f;")
+---
+...
+-- pk - unicode_ci, sc - unicode (should fail)
+box.sql.execute('CREATE TABLE t3g (s1 CHAR(5) collate "unicode_ci" 
PRIMARY KEY);')
+---
+...
+box.sql.execute('CREATE INDEX i3g ON t3g (s1 collate "unicode");')
+---
+...
+box.sql.execute("INSERT INTO t3g VALUES ('a');")
+---
+...
+box.sql.execute("INSERT INTO t3g VALUES ('A');")
+---
+- error: Duplicate key exists in unique index 'pk_unnamed_T3G_1' in 
space 'T3G'
+...
+box.sql.execute("SELECT * FROM t3g;")
+---
+- - ['a']
+...
+box.sql.execute("DROP TABLE t3g;")
+---
+...
+-- pk - default, sc - multipart
+box.sql.execute('CREATE TABLE qms1 (w CHAR(5) PRIMARY KEY, n CHAR(5), q 
CHAR(5), s INTEGER);')
+---
+...
+box.sql.execute('CREATE INDEX iqms1 ON qms1 (w collate "unicode_ci", n);')
+---
+...
+box.sql.execute("INSERT INTO qms1 VALUES ('www', 'nnn', 'qqq', 1);")
+---
+...
+box.sql.execute("INSERT INTO qms1 VALUES ('WWW', 'nnn', 'qqq', 2);")
+---
+...
+box.sql.execute("SELECT * FROM qms1;")
+---
+- - ['WWW', 'nnn', 'qqq', 2]
+  - ['www', 'nnn', 'qqq', 1]
+...
+box.sql.execute("DROP TABLE qms1;")
+---
+...
+box.sql.execute('CREATE TABLE qms2 (w CHAR(5) PRIMARY KEY, n CHAR(5), q 
CHAR(5), s INTEGER);')
+---
+...
+box.sql.execute('CREATE INDEX iqms2 ON qms2 (w collate "unicode", n);')
+---
+...
+box.sql.execute("INSERT INTO qms2 VALUES ('www', 'nnn', 'qqq', 1);")
+---
+...
+box.sql.execute("INSERT INTO qms2 VALUES ('WWW', 'nnn', 'qqq', 2);")
+---
+...
+box.sql.execute("SELECT * FROM qms2;")
+---
+- - ['WWW', 'nnn', 'qqq', 2]
+  - ['www', 'nnn', 'qqq', 1]
+...
+box.sql.execute("DROP TABLE qms2;")
+---
+...
+-- pk - multipart, sc overlaps with pk
+box.sql.execute('CREATE TABLE qms3 (w CHAR(5), n CHAR(5), q CHAR(5), s 
INTEGER, CONSTRAINT pk_qms3 PRIMARY KEY(w, n, q));')
+---
+...
+box.sql.execute('CREATE INDEX iqms3 ON qms3 (w collate "unicode_ci", s);')
+---
+...
+box.sql.execute("INSERT INTO qms3 VALUES ('www', 'nnn', 'qqq', 1);")
+---
+...
+box.sql.execute("INSERT INTO qms3 VALUES ('WWW', 'nnn', 'qqq', 2);")
+---
+...
+box.sql.execute("SELECT * FROM qms3;")
+---
+- - ['WWW', 'nnn', 'qqq', 2]
+  - ['www', 'nnn', 'qqq', 1]
+...
+box.sql.execute("DROP TABLE qms3;")
+---
+...
+box.sql.execute('CREATE TABLE qms4 (w CHAR(5), n CHAR(5), q CHAR(5), s 
INTEGER, CONSTRAINT pk_qms4 PRIMARY KEY(w, n, q));')
+---
+...
+box.sql.execute('CREATE INDEX iqms4 ON qms4 (w collate "unicode", s);')
+---
+...
+box.sql.execute("INSERT INTO qms4 VALUES ('www', 'nnn', 'qqq', 1);")
+---
+...
+box.sql.execute("INSERT INTO qms4 VALUES ('WWW', 'nnn', 'qqq', 2);")
+---
+...
+box.sql.execute("SELECT * FROM qms4;")
+---
+- - ['WWW', 'nnn', 'qqq', 2]
+  - ['www', 'nnn', 'qqq', 1]
+...
+box.sql.execute("DROP TABLE qms4;")
+---
+...
diff --git a/test/sql/collation.test.lua b/test/sql/collation.test.lua
index 4c649a444..075ec7ee4 100644
--- a/test/sql/collation.test.lua
+++ b/test/sql/collation.test.lua
@@ -126,3 +126,126 @@ box.sql.execute("SELECT * FROM t1;")
  box.sql.execute("SELECT s1 FROM t0;")
  box.sql.execute("DROP TABLE t1;")
  box.sql.execute("DROP TABLE t0;")
+
+-- gh-3537 Duplicate key error for an index that is not unique
+-- pk - default, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3 (s1 CHAR(5) PRIMARY KEY);')
+box.sql.execute('CREATE INDEX i3 ON t3 (s1 collate "unicode_ci");')
+box.sql.execute("INSERT INTO t3 VALUES ('a');")
+box.sql.execute("INSERT INTO t3 VALUES ('A');")
+box.sql.execute("SELECT * FROM t3;")
+box.sql.execute("DROP TABLE t3;")
+
+-- pk - binary, sc - unicode
+box.sql.execute('CREATE TABLE t3b (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3b ON t3b (s1 collate "unicode");')
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+box.sql.execute("INSERT INTO t3b VALUES ('A');")
+box.sql.execute("SELECT * FROM t3b;")
+box.sql.execute("DROP TABLE t3b;")
+
+-- pk - binary, sc - unicode (make dup)
+box.sql.execute('CREATE TABLE t3b (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3b ON t3b (s1 collate "unicode");')
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+box.sql.execute("INSERT INTO t3b VALUES ('A');")
+box.sql.execute("INSERT INTO t3b VALUES ('a');")
+box.sql.execute("SELECT * FROM t3b;")
+box.sql.execute("DROP TABLE t3b;")
+
+-- pk - unicode, sc - binary
+box.sql.execute('CREATE TABLE t3c (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3c ON t3c (s1 collate "binary");')
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+box.sql.execute("INSERT INTO t3c VALUES ('A');")
+box.sql.execute("SELECT * FROM t3c;")
+box.sql.execute("DROP TABLE t3c;")
+
+-- pk - unicode, sc - binary (make dup)
+box.sql.execute('CREATE TABLE t3c (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3c ON t3c (s1 collate "binary");')
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+box.sql.execute("INSERT INTO t3c VALUES ('A');")
+box.sql.execute("INSERT INTO t3c VALUES ('a');")
+box.sql.execute("SELECT * FROM t3c;")
+box.sql.execute("DROP TABLE t3c;")
+
+-- pk - binary, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3d (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3d ON t3d (s1 collate "unicode_ci");')
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+box.sql.execute("INSERT INTO t3d VALUES ('A');")
+box.sql.execute("SELECT * FROM t3d;")
+box.sql.execute("DROP TABLE t3d;")
+
+-- pk - binary, sc - unicode_ci (make dup)
+box.sql.execute('CREATE TABLE t3d (s1 CHAR(5) collate "binary" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3d ON t3d (s1 collate "unicode_ci");')
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+box.sql.execute("INSERT INTO t3d VALUES ('A');")
+box.sql.execute("INSERT INTO t3d VALUES ('a');")
+box.sql.execute("SELECT * FROM t3d;")
+box.sql.execute("DROP TABLE t3d;")
+
+-- pk - unicode_ci, sc - binary (should fail)
+box.sql.execute('CREATE TABLE t3e (s1 CHAR(5) collate "unicode_ci" 
PRIMARY KEY);')
+box.sql.execute('CREATE INDEX i3e ON t3e (s1 collate "binary");')
+box.sql.execute("INSERT INTO t3e VALUES ('a');")
+box.sql.execute("INSERT INTO t3e VALUES ('A');")
+box.sql.execute("SELECT * FROM t3e;")
+box.sql.execute("DROP TABLE t3e;")
+
+-- pk - unicode, sc - unicode_ci
+box.sql.execute('CREATE TABLE t3f (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3f ON t3f (s1 collate "unicode_ci");')
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+box.sql.execute("INSERT INTO t3f VALUES ('A');")
+box.sql.execute("SELECT * FROM t3f;")
+box.sql.execute("DROP TABLE t3f;")
+
+-- pk - unicode, sc - unicode_ci (make dup)
+box.sql.execute('CREATE TABLE t3f (s1 CHAR(5) collate "unicode" PRIMARY 
KEY);')
+box.sql.execute('CREATE INDEX i3f ON t3f (s1 collate "unicode_ci");')
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+box.sql.execute("INSERT INTO t3f VALUES ('A');")
+box.sql.execute("INSERT INTO t3f VALUES ('a');")
+box.sql.execute("SELECT * FROM t3f;")
+box.sql.execute("DROP TABLE t3f;")
+
+-- pk - unicode_ci, sc - unicode (should fail)
+box.sql.execute('CREATE TABLE t3g (s1 CHAR(5) collate "unicode_ci" 
PRIMARY KEY);')
+box.sql.execute('CREATE INDEX i3g ON t3g (s1 collate "unicode");')
+box.sql.execute("INSERT INTO t3g VALUES ('a');")
+box.sql.execute("INSERT INTO t3g VALUES ('A');")
+box.sql.execute("SELECT * FROM t3g;")
+box.sql.execute("DROP TABLE t3g;")
+
+-- pk - default, sc - multipart
+box.sql.execute('CREATE TABLE qms1 (w CHAR(5) PRIMARY KEY, n CHAR(5), q 
CHAR(5), s INTEGER);')
+box.sql.execute('CREATE INDEX iqms1 ON qms1 (w collate "unicode_ci", n);')
+box.sql.execute("INSERT INTO qms1 VALUES ('www', 'nnn', 'qqq', 1);")
+box.sql.execute("INSERT INTO qms1 VALUES ('WWW', 'nnn', 'qqq', 2);")
+box.sql.execute("SELECT * FROM qms1;")
+box.sql.execute("DROP TABLE qms1;")
+
+box.sql.execute('CREATE TABLE qms2 (w CHAR(5) PRIMARY KEY, n CHAR(5), q 
CHAR(5), s INTEGER);')
+box.sql.execute('CREATE INDEX iqms2 ON qms2 (w collate "unicode", n);')
+box.sql.execute("INSERT INTO qms2 VALUES ('www', 'nnn', 'qqq', 1);")
+box.sql.execute("INSERT INTO qms2 VALUES ('WWW', 'nnn', 'qqq', 2);")
+box.sql.execute("SELECT * FROM qms2;")
+box.sql.execute("DROP TABLE qms2;")
+
+-- pk - multipart, sc overlaps with pk
+box.sql.execute('CREATE TABLE qms3 (w CHAR(5), n CHAR(5), q CHAR(5), s 
INTEGER, CONSTRAINT pk_qms3 PRIMARY KEY(w, n, q));')
+box.sql.execute('CREATE INDEX iqms3 ON qms3 (w collate "unicode_ci", s);')
+box.sql.execute("INSERT INTO qms3 VALUES ('www', 'nnn', 'qqq', 1);")
+box.sql.execute("INSERT INTO qms3 VALUES ('WWW', 'nnn', 'qqq', 2);")
+box.sql.execute("SELECT * FROM qms3;")
+box.sql.execute("DROP TABLE qms3;")
+
+box.sql.execute('CREATE TABLE qms4 (w CHAR(5), n CHAR(5), q CHAR(5), s 
INTEGER, CONSTRAINT pk_qms4 PRIMARY KEY(w, n, q));')
+box.sql.execute('CREATE INDEX iqms4 ON qms4 (w collate "unicode", s);')
+box.sql.execute("INSERT INTO qms4 VALUES ('www', 'nnn', 'qqq', 1);")
+box.sql.execute("INSERT INTO qms4 VALUES ('WWW', 'nnn', 'qqq', 2);")
+box.sql.execute("SELECT * FROM qms4;")
+box.sql.execute("DROP TABLE qms4;")
-- 
2.17.1

  reply	other threads:[~2019-02-28 14:17 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-20 10:06 [tarantool-patches] " Stanislav Zudin
2019-02-26 13:26 ` Vladimir Davydov
2019-02-28 14:17   ` Stanislav Zudin [this message]
2019-02-28 16:19     ` [tarantool-patches] " Vladimir Davydov
2019-03-01 11:46       ` Stanislav Zudin
2019-03-04 17:53         ` Vladimir Davydov

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