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14 check-ins using file src/prepare.c version d0bbb4b1a8
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2009-02-24
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| 10:48 | Add test file test/count.test for testing "SELECT count(*)" statements. It is not properly populated yet. (CVS 6318) (check-in: a195d74ff9 user: danielk1977 tags: trunk) | |
| 10:14 | Reverse commit (6315) for now. (CVS 6317) (check-in: 0e7c369c23 user: danielk1977 tags: trunk) | |
| 10:01 | Optimize queries of the form "SELECT count(*) FROM <tbl>" by adding a sqlite3BtreeCount() interface to the btree layer. (CVS 6316) (check-in: d4aa659318 user: danielk1977 tags: trunk) | |
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2009-02-23
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| 17:33 | Scan an index instead of a table for "SELECT count(*) FROM <tbl>" queries. Because an index is usually smaller than a table on disk, this saves some IO. (CVS 6315) (check-in: 294ba6f743 user: danielk1977 tags: trunk) | |
| 16:52 | Add the reverse_unordered_selects pragma. (CVS 6314) (check-in: bc078e0007 user: drh tags: trunk) | |
| 14:42 | Ensure the return value of sqlite3_errmsg16() is aligned on a 2-byte boundary. Ticket #3665. (CVS 6313) (check-in: 9b8acf8319 user: danielk1977 tags: trunk) | |
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2009-02-21
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| 22:38 | The sqlite3.def file is automatically generated and is not suppose to be part of the source code repository. So it is hereby removed. Ticket #3671. (CVS 6312) (check-in: 5dcda15409 user: drh tags: trunk) | |
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2009-02-20
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| 22:27 | unbreak Autoconf-based build procedure by added missing backup.lo to the list of library objects (CVS 6311) (check-in: 9494580197 user: rse tags: trunk) | |
| 10:58 | Instead of using SetNumColumns, specify the number of columns in a table or index using the P4 argument. (CVS 6310) (check-in: e43ed64963 user: danielk1977 tags: trunk) | |
| 03:55 | Add a count parameter to the OP_Variable opcode and use it to simplify prepared statements that copy consecutive unnamed parameters into consecutive registers (a common case). (CVS 6309) (check-in: 48b77b0493 user: drh tags: trunk) | |
| 03:02 | Add the OP_HaltIfNull opcode and use it to simplify prepared statements for INSERTs and UPDATEs of tables with NOT NULL columns. (CVS 6308) (check-in: feccad8d0d user: drh tags: trunk) | |
| 01:28 | Reuse space left-over opcode space at the end of the VDBE opcode array to store memory cells, VDBE cursors, and other content needed by the VDBE. This reduces the memory required by a prepared statement. (CVS 6307) (check-in: 58a1809257 user: drh tags: trunk) | |
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2009-02-19
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| 20:50 | Remove code in malloc.c that was already commented out using #if 0. (CVS 6306) (check-in: e1ad757ec0 user: drh tags: trunk) | |
| 14:39 | Changes to reduce the heap space consumed by triggers, views and tables in the in-memory representation of the schema. Also to reduce the space used by prepared statements slightly. (CVS 6305) (check-in: d9f6ffbc5e user: danielk1977 tags: trunk) | |