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Overview
Comment:Add an optimization to OP_Column to speed up sequential OP_Column instructions that read earlier fields from the same cursor. Attempt to reorder OP_Column opcodes so as to take advantage of this.
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Timelines: family | ancestors | sort-column-opcodes
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SHA1: c1adf95958d5210bf9f89fc86d0f6fc6ce32c480
User & Date: dan 2017-02-18 20:05:05
Context
2017-02-18
20:05
Add an optimization to OP_Column to speed up sequential OP_Column instructions that read earlier fields from the same cursor. Attempt to reorder OP_Column opcodes so as to take advantage of this. Leaf check-in: c1adf959 user: dan tags: sort-column-opcodes
13:47
Add the SQLITE_BUG_COMPATIBLE_20160819 compile-time option to omit the error message when an unrecognized argument is provided to the VACUUM command. check-in: 49181427 user: drh tags: trunk
Changes
Unified Diffs Side-by-Side Diffs Patch

Changes to src/expr.c.

Changes to src/select.c.

Changes to src/sqliteInt.h.

Changes to src/update.c.

Changes to src/vdbe.c.

Changes to src/vdbe.h.

Changes to src/vdbeInt.h.

Changes to src/vdbeaux.c.

Changes to src/wherecode.c.