[CALCITE-6792] RelJsonReader failed to read RelJsonWriter output if 'NaN' or 'Infinity' approximate numerics are present - #5220
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…NaN' or 'Infinity' approximate numerics are present RelJson emitted IEEE 754 special values as bare tokens, which are invalid JSON and cannot be parsed through the readers BigDecimal mode. Encode them as typed strings so plans containing approximate literals round-trip. Signed-off-by: 1fanwang <1fannnw@gmail.com>
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please correct your pr title which should be consistent with jira. |
1fanwang
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mihaibudiu
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Aug 25, 2026
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Can you add some round-trip tests, where the plan is serialized and deserialized and compared with the original?
| value instanceof Enum | ||
| ? RelEnumTypes.fromEnum((Enum) value) | ||
| : toJson(value)); | ||
| if (value instanceof Enum) { |
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What case is this branch covering?
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Jira Link
CALCITE-6792
Changes Proposed
A plan containing NaN or infinity cannot make a RelJson round trip. The writer emits those values as bare tokens, and the reader fails with:
Non-finite approximate literals are now written as JSON strings. When the declared type is approximate, the reader converts those strings back to doubles. Finite numbers remain numeric, and a character literal containing "Infinity" remains a string.
Testing