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Fix bad arithmetic in pgLsnToWalSegment().

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/ takes precedence over & but the appropriate parens were not provided.

By some bad luck the tests worked either way, so add a new test that only works the correct way to prevent a regression.
This commit is contained in:
David Steele
2019-12-12 16:21:51 -05:00
parent 676be2c773
commit 1378d9c58b
2 changed files with 2 additions and 1 deletions
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2
src/postgres/interface.c
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@ -619,7 +619,7 @@ pgLsnToWalSegment(uint32_t timeline, uint64_t lsn, unsigned int walSegmentSize)
FUNCTION_TEST_END();
FUNCTION_TEST_RETURN(
strNewFmt("%08X%08X%08X", timeline, (unsigned int)(lsn >> 32), (unsigned int)(lsn & 0xFFFFFFFF / walSegmentSize)));
strNewFmt("%08X%08X%08X", timeline, (unsigned int)(lsn >> 32), (unsigned int)(lsn & 0xFFFFFFFF) / walSegmentSize));
}
/**********************************************************************************************************************************/