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Overview
| Comment: | Clean up the definitions of the TERM_ constants in the code generator. Formatting only - no logic changes. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
af06f80a590e20f64fa2f630e85fa728 |
| User & Date: | drh 2020-01-16 11:51:09 |
Context
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2020-01-16
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| 12:25 | Fix an SQL syntax error in the comment on the omit-left-join optimization. No changes to code. check-in: 86b5e5a2 user: drh tags: trunk | |
| 11:51 | Clean up the definitions of the TERM_ constants in the code generator. Formatting only - no logic changes. check-in: af06f80a user: drh tags: trunk | |
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2020-01-15
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| 16:20 | Do not allow the "PRAGMA encoding" statement to change the database encoding if TEMP content exists, or content in any other attached database. Formerly, encoding changes were allowed if just the main database file was empty. Ticket [a08879a4a476eea9]. check-in: 03b003c9 user: drh tags: trunk | |
Changes
Changes to src/whereInt.h.
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Bitmask prereqRight; /* Bitmask of tables used by pExpr->pRight */ Bitmask prereqAll; /* Bitmask of tables referenced by pExpr */ }; /* ** Allowed values of WhereTerm.wtFlags */ #define TERM_DYNAMIC 0x01 /* Need to call sqlite3ExprDelete(db, pExpr) */ #define TERM_VIRTUAL 0x02 /* Added by the optimizer. Do not code */ #define TERM_CODED 0x04 /* This term is already coded */ #define TERM_COPIED 0x08 /* Has a child */ #define TERM_ORINFO 0x10 /* Need to free the WhereTerm.u.pOrInfo object */ #define TERM_ANDINFO 0x20 /* Need to free the WhereTerm.u.pAndInfo obj */ #define TERM_OR_OK 0x40 /* Used during OR-clause processing */ #ifdef SQLITE_ENABLE_STAT4 # define TERM_VNULL 0x80 /* Manufactured x>NULL or x<=NULL term */ #else # define TERM_VNULL 0x00 /* Disabled if not using stat4 */ #endif #define TERM_LIKEOPT 0x100 /* Virtual terms from the LIKE optimization */ #define TERM_LIKECOND 0x200 /* Conditionally this LIKE operator term */ #define TERM_LIKE 0x400 /* The original LIKE operator */ #define TERM_IS 0x800 /* Term.pExpr is an IS operator */ #define TERM_VARSELECT 0x1000 /* Term.pExpr contains a correlated sub-query */ /* ** An instance of the WhereScan object is used as an iterator for locating ** terms in the WHERE clause that are useful to the query planner. */ struct WhereScan { |
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Bitmask prereqRight; /* Bitmask of tables used by pExpr->pRight */ Bitmask prereqAll; /* Bitmask of tables referenced by pExpr */ }; /* ** Allowed values of WhereTerm.wtFlags */ #define TERM_DYNAMIC 0x0001 /* Need to call sqlite3ExprDelete(db, pExpr) */ #define TERM_VIRTUAL 0x0002 /* Added by the optimizer. Do not code */ #define TERM_CODED 0x0004 /* This term is already coded */ #define TERM_COPIED 0x0008 /* Has a child */ #define TERM_ORINFO 0x0010 /* Need to free the WhereTerm.u.pOrInfo object */ #define TERM_ANDINFO 0x0020 /* Need to free the WhereTerm.u.pAndInfo obj */ #define TERM_OR_OK 0x0040 /* Used during OR-clause processing */ #ifdef SQLITE_ENABLE_STAT4 # define TERM_VNULL 0x0080 /* Manufactured x>NULL or x<=NULL term */ #else # define TERM_VNULL 0x0000 /* Disabled if not using stat4 */ #endif #define TERM_LIKEOPT 0x0100 /* Virtual terms from the LIKE optimization */ #define TERM_LIKECOND 0x0200 /* Conditionally this LIKE operator term */ #define TERM_LIKE 0x0400 /* The original LIKE operator */ #define TERM_IS 0x0800 /* Term.pExpr is an IS operator */ #define TERM_VARSELECT 0x1000 /* Term.pExpr contains a correlated sub-query */ /* ** An instance of the WhereScan object is used as an iterator for locating ** terms in the WHERE clause that are useful to the query planner. */ struct WhereScan { |