Fix timezone manipulation code to avoid crashes on some machines.
Add type conversion functions for floating point numbers. Check for zero in unary minus floating point code (IEEE allows an explicit negative zero which looks ugly in a query result!). Ensure circle type has non-negative radius.
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- src/backend/utils/adt/datetime.c 3 additions, 2 deletionssrc/backend/utils/adt/datetime.c
- src/backend/utils/adt/dt.c 97 additions, 137 deletionssrc/backend/utils/adt/dt.c
- src/backend/utils/adt/float.c 200 additions, 55 deletionssrc/backend/utils/adt/float.c
- src/backend/utils/adt/geo_ops.c 3 additions, 3 deletionssrc/backend/utils/adt/geo_ops.c
- src/backend/utils/adt/nabstime.c 3 additions, 3 deletionssrc/backend/utils/adt/nabstime.c
- src/backend/utils/adt/timestamp.c 2 additions, 1 deletionsrc/backend/utils/adt/timestamp.c
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