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This feature caters to specialized use-cases such as running the normal pgbench scenario with nonstandard indexes, or inserting other actions between steps of the initialization sequence. The normal sequence of initialization actions is broken down into half a dozen steps which can be executed in a user-specified order, to the extent to which that's sensible. The actions themselves aren't changed, except to make them more robust against nonstandard uses: * all four tables are now dropped in one DROP command, to reduce assumptions about what foreign key relationships exist; * all four tables are now truncated at the start of the data load step, for consistency; * the foreign key creation commands now specify constraint names, to prevent accidentally creating duplicate constraints by executing the 'f' step twice. Make some cosmetic adjustments in the messages emitted by pgbench so that it's clear which steps are getting run, and so that the messages agree with the documented names of the steps. In passing, fix failure to enforce that the -v option is used only in benchmarking mode. Masahiko Sawada, reviewed by Fabien Coelho, editorialized a bit by me Discussion: https://postgr.es/m/CAD21AoCsz0ZzfCFcxYZ+PUdpkDd5VsCSG0Pre_-K1EgokCDFYA@mail.gmail.com |
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