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Fix NumericDecodeUtils.decodeBinary(byteBuf) decoding #558

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Fix NumericDecodeUtils.decodeBinary(byteBuf) decoding #558

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alphaville76
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…result for BigDecimal between 1 and -1

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Issue description

I use the some test data as in https://github.com/pgjdbc/pgjdbc/blob/a29767eaa27b97a68c21dee04e8483872783f2e2/pgjdbc/src/test/java/org/postgresql/util/BigDecimalByteConverterTest.java plus some more data.

To create the BigDecimal in binary format, I use the util method ByteConverter.numeric provided by the jdbc postgres drivers.

@gebit-costantino
Fix bug pgjdbc#556: NumericDecodeUtils.decodeBinary(byteBuf) returns …
3f496fa 
…wrong result for BigDecimal between 1 and -1
@mp911de mp911de changed the title Fix bug #556: NumericDecodeUtils.decodeBinary(byteBuf) returns wrong … Fix NumericDecodeUtils.decodeBinary(byteBuf) decoding Nov 9, 2022
@mp911de mp911de added the type: bug A general bug label Nov 9, 2022
@mp911de mp911de added this to the 0.9.3.RELEASE milestone Nov 9, 2022
@mp911de mp911de linked an issue Nov 9, 2022 that may be closed by this pull request
NumericDecodeUtils.decodeBinary(byteBuf) returns wrong result for BigDecimal between 1 and -1 #556
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mp911de pushed a commit that referenced this pull request Nov 9, 2022
@gebit-costantino @mp911de
Fix NumericDecodeUtils.decodeBinary(byteBuf) decoding.
44d8d76 
Previously, decodeBinary returned a wrong result for BigDecimal between 1 and -1. Now the decoding is implemented as per the Postgres spec.

[#558][resolves #556]
mp911de added a commit that referenced this pull request Nov 9, 2022
@mp911de
Polishing.
dcbc951 
Replace String.format(…) with our own digit rendering and padding to reduce computation on hot code paths.

[resolves #558][#556]

Signed-off-by: Mark Paluch <mpaluch@vmware.com>
mp911de pushed a commit that referenced this pull request Nov 9, 2022
@gebit-costantino @mp911de
Fix NumericDecodeUtils.decodeBinary(byteBuf) decoding.
2ad7d71 
Previously, decodeBinary returned a wrong result for BigDecimal between 1 and -1. Now the decoding is implemented as per the Postgres spec.

[#558][resolves #556]
@mp911de mp911de closed this in ac64d9a Nov 9, 2022
@mp911de
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mp911de commented Nov 9, 2022

Thank you for your contribution. That's merged, polished, and backported now.

@mp911de mp911de self-assigned this Nov 9, 2022
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NumericDecodeUtils.decodeBinary(byteBuf) returns wrong result for BigDecimal between 1 and -1
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@alphaville76 @mp911de @gebit-costantino