Commits : Individual Commit
Analyzed 7 days
ago based on code collected 7 days ago.
Commit ID a36088bcfae85eeeb55e85c3f06c61cb2f0621c6
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Contributor: | Tom Lane | Files Modified: | 2 |
| Date: | 12-July-2012 at 20:26 | Lines Added: | 197 | |
| Repository: | git://git.postgresql.org/git/postgresql.git master | Lines Removed: | 3 | |
| Commit Comment: | Skip text->binary conversion of unnecessary columns in contrib/file_fdw. When reading from a text- or CSV-format file in file_fdw, the datatype input routines can consume a significant fraction of the runtime. Often, the query does not need all the columns, so we can get a useful speed boost by skipping I/O conversion for unnecessary columns. To support this, add a "convert_selectively" option to the core COPY code. This is undocumented and not accessible from SQL (for now, anyway). Etsuro Fujita, reviewed by KaiGai Kohei |
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| Language | Code Added | Code Removed | Comments Added | Comment Removed | Blanks Added | Blanks Removed | |
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| C | 133 | 2 | 36 | 1 | 28 | 0 | |
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