support sin cos etc trigonometric function in sql #7182
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gianm
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Mar 4, 2019
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@xueyumusic, could you please test this patch against the latest master (it uses EXPRESSION_POST_AGG, which has been renamed recently) and also add docs to math-expr.md and sql.md for the new functions?
Other than those things and the line comments, this looks good to me.
| throw new IAE("Function[%s] needs 0 argument", name()); | ||
| } | ||
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| return ExprEval.of(Math.PI); |
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Could be extracted to a private static final constant.
| .context(QUERY_CONTEXT_DONT_SKIP_EMPTY_BUCKETS) | ||
| .build()), | ||
| ImmutableList.of( | ||
| new Object[]{11.0, Math.sin(Math.PI / 6), Math.cos(Math.PI / 6), Math.tan(Math.PI / 6), Math.cos(Math.PI / 6) / Math.sin(Math.PI / 6), |
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You might need to put one result on each line to satisfy the style checker.
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Hi, @gianm , Thanks a lot for review. I have rebased on master and updated the codes, thank you. |
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This PR tries to support sin, cos, tan, cot, asin, acos, atan, atan2 etc function and pi constant in sql based on the current calcite framework. They are common math functions.