feat(parser): ClickHouse array/tuple element access via dot (d.1) - #535
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feat(parser): ClickHouse array/tuple element access via dot (d.1)#535basili4-1982 wants to merge 1 commit into
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Allow a numeric component after a period in ClickHouse qualified identifiers (alias.1, tuple.2) for array/tuple element access. Restricted to the ClickHouse dialect so Postgres qualified columns stay unchanged. Regression: TestClickHouseArrayElementAccess.
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Summary
ClickHouse allows array/tuple element access with dot-notation (
d.1,tuple.2)inside expressions. The parser rejected a numeric component after a period with
E2004(expected column name or * after table qualifier).Changes
pkg/sql/parser/expressions_literal.go: allow a numeric component after.in qualified identifiers when the dialect is ClickHouse (guarded, so Postgres
qualified columns
schema.123stay unchanged).pkg/sql/parser/clickhouse_array_dot_test.go: regression round-trip tests.Test plan
TestClickHouseArrayElementAccess(d.1, a.x, arr[1]) — greengo test -short ./pkg/sql/ast/ ./pkg/sql/parser/ ./pkg/gosqlx/ ./pkg/formatter/green