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The SQL parser as it stands right now ignores alias for aggregate
result, e.g. `SELECT COUNT(*) AS thing FROM s3object` doesn't actually
return record like `{"thing": 42}`, it returns a record like `{"_1": 42}`.
Column alias for aggregate result is supported in AWS's S3 Select, so
this commit fixes that by respecting the `expr.As` in the expression.
Also improve test for S3 select
On top of testing a simple `SELECT` query, we want to test a few more
"advanced" queries (e.g. aggregation).
Convert existing tests into table driven tests[1], and add the new test
cases with "advanced" queries into them.
[1] - https://github.com/golang/go/wiki/TableDrivenTests
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| .. | ||
| jsondata | ||
| aggregation.go | ||
| analysis.go | ||
| errors.go | ||
| evaluate.go | ||
| funceval.go | ||
| jsonpath_test.go | ||
| jsonpath.go | ||
| parser_test.go | ||
| parser.go | ||
| record.go | ||
| statement.go | ||
| stringfuncs_test.go | ||
| stringfuncs.go | ||
| timestampfuncs_test.go | ||
| timestampfuncs.go | ||
| utils.go | ||
| value.go | ||