COPY performance improvements. Avoid calling CopyGetData for each input

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character, tighten the inner loops of CopyReadLine and CopyReadAttribute,
arrange to parse out all the attributes of a line in just one call instead
of one CopyReadAttribute call per attribute, be smarter about which client
encodings require slow pg_encoding_mblen() loops.  Also, clean up the
mishmash of static variables and overly-long parameter lists in favor of
passing around a single CopyState struct containing all the state data.
Original patch by Alon Goldshuv, reworked by Tom Lane.

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This commit is contained in:

Tom Lane

2005-08-06 20:41:58 +00:00

parent 28d3ee4771

commit 9b29f9f3f8

1 changed files with 1539 additions and 1075 deletions

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src/backend/commands/copy.c

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