Avoid json outfuncs key duplication #246
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The JSON format intends to follow the structure of the Protobuf JSON
representation of the parse nodes. The A_Const parse node is the only
one making use of the "oneof" construct (matching the union in the C code)
and was using a different representation in the generated JSON protobuf
(outputting "ival" once), vs the manual JSON output (outputting it twice).
Match the manual JSON output to the generate JSON protobuf. This changes
an output of "{"A_Const":{"ival":{"ival":123}}}" to be
"{"A_Const":{"ival":123}}" instead.
This is a breaking change in the JSON output.
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Hmm, it looks like |
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We (https://github.com/edgedb/edgedb) use the JSON output and are trying to upgrade to 16 but are blocked by the int constant thing. We would definitely appreciate a fix on 16 (though we can make a temporary fork with a direct fix if needed) |
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It looks like the mismatch that was happening with protobuf wasn't actually the double key situation, but that protobuf still left out the value on |
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I've submitted #249 |
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Reviewing #244 I noticed that we appear to incorrectly wrap
ival,sval, etc twice when outputtingA_Constnodes. That does not match the Protobuf JSON approach, which intends to have aoneofrepresented the same way as having a simple field of that type (see protocolbuffers/protobuf#3928 (comment)).This change now matches the manual JSON output to the generate JSON protobuf. This changes
an output of
{"A_Const":{"ival":{"ival":123}}}to be{"A_Const":{"ival":123}}instead.This is a breaking change in the JSON output. As such, this would warrant a minor version bump (or we could hold off until the Postgres 17 release). Note that this does not change anything in the binary Protobuf output, which is used by most wrapper libraries.