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Overview
Comment: | Further minor enhancement and size reduction in sqlite3ExprAssignVarNumber(). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
eacfdcf25796ea29b5e63499c3d73974 |
User & Date: | drh 2017-01-31 12:41:48.800 |
Context
2017-01-31
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15:27 | Fix a typo in a comment. (check-in: bd22bf9cbe user: drh tags: trunk) | |
14:08 | Merge latest trunk with this branch. (check-in: 4a592abbc5 user: dan tags: preupdate-without-rowid) | |
12:41 | Further minor enhancement and size reduction in sqlite3ExprAssignVarNumber(). (check-in: eacfdcf257 user: drh tags: trunk) | |
03:52 | Performance optimization in sqlite3ExprAssignVarNumber(). (check-in: 5987ca1ff9 user: drh tags: trunk) | |
Changes
Changes to src/expr.c.
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970 971 972 973 974 975 976 | int bOk; if( n==2 ){ /*OPTIMIZATION-IF-TRUE*/ i = z[1]-'0'; /* The common case of ?N for a single digit N */ bOk = 1; }else{ bOk = 0==sqlite3Atoi64(&z[1], &i, n-1, SQLITE_UTF8); } | < > | 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 | int bOk; if( n==2 ){ /*OPTIMIZATION-IF-TRUE*/ i = z[1]-'0'; /* The common case of ?N for a single digit N */ bOk = 1; }else{ bOk = 0==sqlite3Atoi64(&z[1], &i, n-1, SQLITE_UTF8); } testcase( i==0 ); testcase( i==1 ); testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]-1 ); testcase( i==db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ); if( bOk==0 || i<1 || i>db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER] ){ sqlite3ErrorMsg(pParse, "variable number must be between ?1 and ?%d", db->aLimit[SQLITE_LIMIT_VARIABLE_NUMBER]); return; } x = (ynVar)i; if( x>pParse->nVar ){ pParse->nVar = (int)x; doAdd = 1; }else if( sqlite3VListNumToName(pParse->pVList, x)==0 ){ doAdd = 1; } }else{ |
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