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Overview
| Comment: | Fix a bug in the CAST operator associated with the column cache. (CVS 5866) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
1b6a5140446da896f69fddc8d1ea0768 |
| User & Date: | drh 2008-11-06 15:33:04 |
Context
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2008-11-07
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| 00:06 | Add documentation to make it clear that short reads from xRead in the VFS must be zero-filled. (CVS 5867) (check-in: fb311d6f user: drh tags: trunk) | |
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2008-11-06
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| 15:33 | Fix a bug in the CAST operator associated with the column cache. (CVS 5866) (check-in: 1b6a5140 user: drh tags: trunk) | |
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2008-11-05
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| 17:41 | Fix memory allocation problems when string length exceeds limits. (CVS 5865) (check-in: b568e325 user: drh tags: trunk) | |
Changes
Changes to src/expr.c.
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** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.400 2008/10/25 15:03:21 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** Return the 'affinity' of the expression pExpr if any. ** ................................................................................ assert( to_op==OP_ToInt || aff!=SQLITE_AFF_INTEGER ); assert( to_op==OP_ToReal || aff!=SQLITE_AFF_REAL ); testcase( to_op==OP_ToText ); testcase( to_op==OP_ToBlob ); testcase( to_op==OP_ToNumeric ); testcase( to_op==OP_ToInt ); testcase( to_op==OP_ToReal ); sqlite3VdbeAddOp1(v, to_op, inReg); testcase( usedAsColumnCache(pParse, inReg, inReg) ); sqlite3ExprCacheAffinityChange(pParse, inReg, 1); break; } #endif /* SQLITE_OMIT_CAST */ case TK_LT: |
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** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.401 2008/11/06 15:33:04 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** Return the 'affinity' of the expression pExpr if any. ** ................................................................................ assert( to_op==OP_ToInt || aff!=SQLITE_AFF_INTEGER ); assert( to_op==OP_ToReal || aff!=SQLITE_AFF_REAL ); testcase( to_op==OP_ToText ); testcase( to_op==OP_ToBlob ); testcase( to_op==OP_ToNumeric ); testcase( to_op==OP_ToInt ); testcase( to_op==OP_ToReal ); if( inReg!=target ){ sqlite3VdbeAddOp2(v, OP_SCopy, inReg, target); inReg = target; } sqlite3VdbeAddOp1(v, to_op, inReg); testcase( usedAsColumnCache(pParse, inReg, inReg) ); sqlite3ExprCacheAffinityChange(pParse, inReg, 1); break; } #endif /* SQLITE_OMIT_CAST */ case TK_LT: |
Changes to test/cast.test.
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the CAST operator. # # $Id: cast.test,v 1.9 2008/01/19 20:11:26 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if the build includes the CAST operator ifcapable !cast { finish_test ................................................................................ do_test cast-3.32.2 { sqlite3_column_int $::STMT 0 } {12345} do_test cast-3.32.3 { sqlite3_finalize $::STMT } {SQLITE_OK} finish_test |
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the CAST operator. # # $Id: cast.test,v 1.10 2008/11/06 15:33:04 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if the build includes the CAST operator ifcapable !cast { finish_test ................................................................................ do_test cast-3.32.2 { sqlite3_column_int $::STMT 0 } {12345} do_test cast-3.32.3 { sqlite3_finalize $::STMT } {SQLITE_OK} do_test cast-4.1 { db eval { CREATE TABLE t1(a); INSERT INTO t1 VALUES('abc'); SELECT a, CAST(a AS integer) FROM t1; } } {abc 0} do_test cast-4.2 { db eval { SELECT CAST(a AS integer), a FROM t1; } } {0 abc} do_test cast-4.3 { db eval { SELECT a, CAST(a AS integer), a FROM t1; } } {abc 0 abc} do_test cast-4.4 { db eval { SELECT CAST(a AS integer), a, CAST(a AS real), a FROM t1; } } {0 abc 0.0 abc} finish_test |