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Overview
Comment: | Add a comment to restriction (6) of the push-down optimization. No changes to code. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
0c8a2f257fb71b2b053c4a2028db063e |
User & Date: | drh 2018-07-09 20:58:43.825 |
Context
2018-07-09
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22:49 | Fixes for various harmless compiler warnings. (check-in: 5023b1b85b user: drh tags: trunk) | |
20:58 | Add a comment to restriction (6) of the push-down optimization. No changes to code. (check-in: 0c8a2f257f user: drh tags: trunk) | |
20:41 | Add an ALWAYS() around a branch in sqlite3BtreeSkipNext() that we believe must always be true. (check-in: 12be361a53 user: drh tags: trunk) | |
Changes
Changes to src/select.c.
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4153 4154 4155 4156 4157 4158 4159 | ){ Expr *pNew; int nChng = 0; if( pWhere==0 ) return 0; if( pSubq->selFlags & SF_Recursive ) return 0; /* restriction (2) */ #ifndef SQLITE_OMIT_WINDOWFUNC | | | 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 | ){ Expr *pNew; int nChng = 0; if( pWhere==0 ) return 0; if( pSubq->selFlags & SF_Recursive ) return 0; /* restriction (2) */ #ifndef SQLITE_OMIT_WINDOWFUNC if( pSubq->pWin ) return 0; /* restriction (6) */ #endif #ifdef SQLITE_DEBUG /* Only the first term of a compound can have a WITH clause. But make ** sure no other terms are marked SF_Recursive in case something changes ** in the future. */ |
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