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From tgl@svr1.postgresql.org (Tom Lane)
Subject pgsql-server/src backend/parser/gram.y include ...
Date
Msg-id 20030822203433.87260D1BACF@svr1.postgresql.org
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CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@svr1.postgresql.org    03/08/22 17:34:33

Modified files:
    src/backend/parser: gram.y
    src/include/nodes: pg_list.h

Log message:
    Tweak grammar to use FastAppend rather than lappend when constructing
    expr_lists.  This appears to be the only remaining O(N^2) bottleneck
    in processing many-way 'x IN (a,b,c,...)' conditions.

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