[Tarantool-patches] [PATCH] sql: remove ApplyType opcode during <IN> process

Nikita Pettik korablev at tarantool.org
Mon Mar 2 14:52:22 MSK 2020


On 29 Feb 16:27, Roman Khabibov wrote:
> Don't apply type during <IN> processing.
> ---

Please, provide justification and explanation. I can't provide
review otherwise.

> Branch: https://github.com/tarantool/tarantool/tree/romanhabibov/gh-4692-in-bug
> 
>  src/box/sql/expr.c                   | 18 +++---------------
>  test/sql-tap/in3.test.lua            |  2 +-
>  test/sql-tap/subquery.test.lua       |  2 --
>  test/sql-tap/tkt-80e031a00f.test.lua | 16 ++++++++--------
>  test/sql/boolean.result              | 12 ++++++------
>  5 files changed, 18 insertions(+), 32 deletions(-)
> 
> diff --git a/src/box/sql/expr.c b/src/box/sql/expr.c
> index bc2182446..33ad57c67 100644
> --- a/src/box/sql/expr.c
> +++ b/src/box/sql/expr.c
> @@ -3058,8 +3058,6 @@ sqlExprCodeIN(Parse * pParse,	/* Parsing and code generating context */
>  	pLeft = pExpr->pLeft;
>  	if (sqlExprCheckIN(pParse, pExpr))
>  		return;
> -	/* Type sequence for comparisons. */
> -	enum field_type *zAff = expr_in_type(pParse, pExpr);
>  	nVector = sqlExprVectorSize(pExpr->pLeft);
>  	aiMap =
>  	    (int *)sqlDbMallocZero(pParse->db,
> @@ -3140,16 +3138,15 @@ sqlExprCodeIN(Parse * pParse,	/* Parsing and code generating context */
>  						  (void *)coll, P4_COLLSEQ);
>  				VdbeCoverageIf(v, ii < pList->nExpr - 1);
>  				VdbeCoverageIf(v, ii == pList->nExpr - 1);
> -				sqlVdbeChangeP5(v, zAff[0]);
> +				sqlVdbeChangeP5(v, sql_expr_type(pLeft));
>  			} else {
>  				assert(destIfNull == destIfFalse);
>  				sqlVdbeAddOp4(v, OP_Ne, rLhs, destIfFalse,
>  						  r2, (void *)coll,
>  						  P4_COLLSEQ);
>  				VdbeCoverage(v);
> -				sqlVdbeChangeP5(v,
> -						    zAff[0] |
> -						    SQL_JUMPIFNULL);
> +				sqlVdbeChangeP5(v, sql_expr_type(pLeft) |
> +						SQL_JUMPIFNULL);
>  			}
>  			sqlReleaseTempReg(pParse, regToFree);
>  		}
> @@ -3184,14 +3181,6 @@ sqlExprCodeIN(Parse * pParse,	/* Parsing and code generating context */
>  	 * of the RHS using the LHS as a probe.  If found, the result is
>  	 * true.
>  	 */
> -	zAff[nVector] = field_type_MAX;
> -	sqlVdbeAddOp4(v, OP_ApplyType, rLhs, nVector, 0, (char*)zAff,
> -			  P4_DYNAMIC);
> -	/*
> -	 * zAff will be freed at the end of VDBE execution, since
> -	 * it was passed with P4_DYNAMIC flag.
> -	 */
> -	zAff = NULL;
>  	if (destIfFalse == destIfNull) {
>  		/* Combine Step 3 and Step 5 into a single opcode */
>  		sqlVdbeAddOp4Int(v, OP_NotFound, pExpr->iTable,
> @@ -3277,7 +3266,6 @@ sqlExprCodeIN(Parse * pParse,	/* Parsing and code generating context */
>  	VdbeComment((v, "end IN expr"));
>   sqlExprCodeIN_oom_error:
>  	sqlDbFree(pParse->db, aiMap);
> -	sqlDbFree(pParse->db, zAff);
>  }
>  
>  /*
> diff --git a/test/sql-tap/in3.test.lua b/test/sql-tap/in3.test.lua
> index e29db9d93..72782b54f 100755
> --- a/test/sql-tap/in3.test.lua
> +++ b/test/sql-tap/in3.test.lua
> @@ -330,7 +330,7 @@ test:do_test(
>          return exec_neph(" SELECT x IN (SELECT b FROM t1) FROM t2 ")
>      end, {
>          -- <in3-3.3>
> -        1, true
> +        1, false
>          -- </in3-3.3>
>      })
>  
> diff --git a/test/sql-tap/subquery.test.lua b/test/sql-tap/subquery.test.lua
> index 6bedf5879..c4619e8f5 100755
> --- a/test/sql-tap/subquery.test.lua
> +++ b/test/sql-tap/subquery.test.lua
> @@ -363,7 +363,6 @@ test:do_test(
>          ]]
>      end, {
>          -- <subquery-2.5.2>
> -        "10.0"
>          -- </subquery-2.5.2>
>      })
>  
> @@ -378,7 +377,6 @@ test:do_test(
>          ]]
>      end, {
>          -- <subquery-2.5.3.1>
> -        "10.0"
>          -- </subquery-2.5.3.1>
>      })
>  
> diff --git a/test/sql-tap/tkt-80e031a00f.test.lua b/test/sql-tap/tkt-80e031a00f.test.lua
> index a0e6539e0..8553a15a8 100755
> --- a/test/sql-tap/tkt-80e031a00f.test.lua
> +++ b/test/sql-tap/tkt-80e031a00f.test.lua
> @@ -340,23 +340,23 @@ test:do_execsql_test(
>          -- </tkt-80e031a00f.26>
>      })
>  
> -test:do_catchsql_test(
> +test:do_execsql_test(
>      "tkt-80e031a00f.27",
>      [[
>          SELECT 'hello' IN t1
>      ]], {
>          -- <tkt-80e031a00f.27>
> -        1, 'Type mismatch: can not convert hello to integer'
> +        false
>          -- </tkt-80e031a00f.27>
>      })
>  
> -test:do_catchsql_test(
> +test:do_execsql_test(
>      "tkt-80e031a00f.28",
>      [[
>          SELECT 'hello' NOT IN t1
>      ]], {
>          -- <tkt-80e031a00f.28>
> -        1, 'Type mismatch: can not convert hello to integer'
> +        true
>          -- </tkt-80e031a00f.28>
>      })
>  
> @@ -380,23 +380,23 @@ test:do_execsql_test(
>          -- </tkt-80e031a00f.30>
>      })
>  
> -test:do_catchsql_test(
> +test:do_execsql_test(
>      "tkt-80e031a00f.31",
>      [[
>          SELECT x'303132' IN t1
>      ]], {
>          -- <tkt-80e031a00f.31>
> -        1, 'Type mismatch: can not convert varbinary to integer'
> +        false
>          -- </tkt-80e031a00f.31>
>      })
>  
> -test:do_catchsql_test(
> +test:do_execsql_test(
>      "tkt-80e031a00f.32",
>      [[
>          SELECT x'303132' NOT IN t1
>      ]], {
>          -- <tkt-80e031a00f.32>
> -        1, 'Type mismatch: can not convert varbinary to integer'
> +        true
>          -- </tkt-80e031a00f.32>
>      })
>  
> diff --git a/test/sql/boolean.result b/test/sql/boolean.result
> index 7769d0cb3..0abd88915 100644
> --- a/test/sql/boolean.result
> +++ b/test/sql/boolean.result
> @@ -3872,12 +3872,12 @@ SELECT false IN (0, 1, 2, 3);
>  SELECT true IN (SELECT b FROM t7);
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert TRUE to integer'
> + | - 'Type mismatch: can not convert unsigned to boolean'
>   | ...
>  SELECT false IN (SELECT b FROM t7);
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert FALSE to integer'
> + | - 'Type mismatch: can not convert unsigned to boolean'
>   | ...
>  SELECT a1, a1 IN (0, 1, 2, 3) FROM t6
>   | ---
> @@ -5033,22 +5033,22 @@ SELECT a2 IN (0.1, 1.2, 2.3, 3.4) FROM t6 LIMIT 1;
>  SELECT true IN (SELECT c FROM t8);
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert TRUE to number'
> + | - 'Type mismatch: can not convert real to boolean'
>   | ...
>  SELECT false IN (SELECT c FROM t8);
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert FALSE to number'
> + | - 'Type mismatch: can not convert real to boolean'
>   | ...
>  SELECT a1 IN (SELECT c FROM t8) FROM t6 LIMIT 1;
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert FALSE to number'
> + | - 'Type mismatch: can not convert real to boolean'
>   | ...
>  SELECT a2 IN (SELECT c FROM t8) FROM t6 LIMIT 1;
>   | ---
>   | - null
> - | - 'Type mismatch: can not convert TRUE to number'
> + | - 'Type mismatch: can not convert real to boolean'
>   | ...
>  
>  SELECT true BETWEEN 0.1 and 9.9;
> -- 
> 2.21.0 (Apple Git-122)
> 


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