6260cc550b
These commands allow assignment of values produced by queries to pgbench variables, where they can be used by further commands. \gset terminates a command sequence (just like a bare semicolon); \cset separates multiple queries in a compound command, like an escaped semicolon (\;). A prefix can be provided to the \-command and is prepended to the name of each output column to produce the final variable name. This feature allows pgbench scripts to react meaningfully to the actual database contents, allowing more powerful benchmarks to be written. Authors: Fabien Coelho, Álvaro Herrera Reviewed-by: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp> Reviewed-by: Stephen Frost <sfrost@snowman.net> Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Tatsuo Ishii <ishii@sraoss.co.jp> Reviewed-by: Rafia Sabih <rafia.sabih@enterprisedb.com> Discussion: https://postgr.es/m/alpine.DEB.2.20.1607091005330.3412@sto |
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