Add JSON support #450
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Add JSON support #450
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theory
commented
Nov 19, 2025
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| GenericColumnTestCase<ColumnString, &makeColumn<ColumnString>, std::string, &MakeStrings>, | ||
| GenericColumnTestCase<ColumnFixedString, &makeColumn<ColumnFixedString, 12>, std::string, &MakeFixedStrings<12>>, | ||
| GenericColumnTestCase<ColumnJSON, &makeColumn<ColumnJSON>, std::string, &MakeJSONStrings>, |
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This is the only test that fails. It crashes with this error:
libc++abi: terminating due to uncaught exception of type std::__1::system_error: closed: Operation now in progress
I presume it's because it fails to turn the protocol JSON format into a string.
Implemented the same as String, which seems to work fine except for round-tripping. I assume it's not actually a string in the protocol so it will need a different format. But hopefully the rest of the infrastructure for it is helpful.
theory
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Nov 19, 2025
Map it to the `JSON` data type and test table importing, insertion, and selection. Add a test for both the binary and HTTP engines. The Binary engine will successfully import a table with a `JSON` column but not be able to insert or select that column until `JSON` support is added to `clickhouse-cpp` (issue ClickHouse/clickhouse-cpp#422; PR ClickHouse/clickhouse-cpp#450).
theory
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Nov 19, 2025
Map it to the `JSON` data type and test table importing, insertion, and selection. Add a test for both the binary and HTTP engines, and tweak the ClickHouse configuration to enable the JSON type in 24 and earlier. The Binary engine will successfully import a table with a `JSON` column but not be able to insert or select that column until `JSON` support is added to `clickhouse-cpp` (issue ClickHouse/clickhouse-cpp#422; PR ClickHouse/clickhouse-cpp#450).
theory
added a commit
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that referenced
this pull request
Nov 19, 2025
Map it to the `JSON` data type and test table importing, insertion, and selection. Add a test for both the binary and HTTP engines, and tweak the ClickHouse configuration to enable the JSON type in 24 and earlier, although it does not work prior to 24.8. The Binary engine will successfully import a table with a `JSON` column but not be able to insert or select that column until `JSON` support is added to `clickhouse-cpp` (issue ClickHouse/clickhouse-cpp#422; PR ClickHouse/clickhouse-cpp#450).
theory
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Nov 20, 2025
Map it to the `JSON` data type and test table importing, insertion, and selection. Add a test for both the binary and HTTP engines, and tweak the ClickHouse configuration to enable the JSON type in 24 and earlier, although it does not work prior to 24.8. The Binary engine will successfully import a table with a `JSON` column but not be able to insert or select that column until `JSON` support is added to `clickhouse-cpp` (issue ClickHouse/clickhouse-cpp#422; PR ClickHouse/clickhouse-cpp#450).
theory
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Dec 9, 2025
Add support for JSONB to `INSERT` statements and, when importing tables, map the ClickHouse JSON type to PostgreSQL JSONB. This increases the what users can do with these values; they can still use JSON for manually-created tables. Does not yet include binary engine support for JSON, which will requires support from clickhouse-cpp (ClickHouse/clickhouse-cpp#450).
theory
added a commit
to ClickHouse/pg_clickhouse
that referenced
this pull request
Dec 9, 2025
Add support for JSONB to `INSERT` statements and, when importing tables, map the ClickHouse JSON type to PostgreSQL JSONB. This increases the what users can do with these values; they can still use JSON for manually-created tables. Does not yet include binary engine support for JSON, which will requires support from clickhouse-cpp (ClickHouse/clickhouse-cpp#450).
theory
added a commit
to ClickHouse/pg_clickhouse
that referenced
this pull request
Dec 10, 2025
Add support for JSONB to `INSERT` statements and, when importing tables, map the ClickHouse JSON type to PostgreSQL JSONB. This increases the what users can do with these values; they can still use JSON for manually-created tables. Does not yet include binary engine support for JSON, which will requires support from clickhouse-cpp (ClickHouse/clickhouse-cpp#450).
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Implemented the same as String, which seems to work fine except for round-tripping. I assume it's not actually a string in the protocol so it will need a different format. But hopefully the rest of the infrastructure for it is helpful.
Not a blocker for my project; JSON works fine for now with the HTTP interface.