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Ensure that btree sort ordering functions and boolean comparison operators
give consistent results for all datatypes. Types float4, float8, and numeric were broken for NaN values; abstime, timestamp, and interval were broken for INVALID values; timetz was just plain broken (some possible pairs of values were neither < nor = nor >). Also clean up text, bpchar, varchar, and bit/varbit to eliminate duplicate code and thereby reduce the probability of similar inconsistencies arising in the future.
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- src/backend/access/nbtree/nbtcompare.c 16 additions, 122 deletionssrc/backend/access/nbtree/nbtcompare.c
- src/backend/utils/adt/date.c 30 additions, 16 deletionssrc/backend/utils/adt/date.c
- src/backend/utils/adt/float.c 117 additions, 32 deletionssrc/backend/utils/adt/float.c
- src/backend/utils/adt/nabstime.c 52 additions, 85 deletionssrc/backend/utils/adt/nabstime.c
- src/backend/utils/adt/numeric.c 40 additions, 116 deletionssrc/backend/utils/adt/numeric.c
- src/backend/utils/adt/timestamp.c 60 additions, 152 deletionssrc/backend/utils/adt/timestamp.c
- src/backend/utils/adt/varbit.c 37 additions, 39 deletionssrc/backend/utils/adt/varbit.c
- src/backend/utils/adt/varchar.c 9 additions, 6 deletionssrc/backend/utils/adt/varchar.c
- src/backend/utils/adt/varlena.c 58 additions, 74 deletionssrc/backend/utils/adt/varlena.c
- src/include/utils/nabstime.h 1 addition, 2 deletionssrc/include/utils/nabstime.h
- src/test/regress/expected/abstime-solaris-1947.out 4 additions, 2 deletionssrc/test/regress/expected/abstime-solaris-1947.out
- src/test/regress/expected/abstime.out 4 additions, 2 deletionssrc/test/regress/expected/abstime.out
- src/test/regress/expected/timestamp.out 12 additions, 3 deletionssrc/test/regress/expected/timestamp.out
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