exec/java-exec/src/test/resources/functions/test_stddev_variance.json

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      format: {type: "json"},
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      files:["#{TEST_FILE}"]
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    "exprs" : [ {
      "ref" : "`EXPR$0`",
      "expr" : "stddev_pop(`A`) "
    }, {
      "ref" : "`EXPR$1`",
      "expr" : "stddev(`A`) "
    }, {
      "ref" : "`EXPR$2`",
      "expr" : "stddev_samp(`A`) "
    }, {
      "ref" : "`EXPR$3`",
      "expr" : "var_pop(`A`) "
    }, {
      "ref" : "`EXPR$4`",
      "expr" : "variance(`A`) "
    }, {
      "ref" : "`EXPR$5`",
      "expr" : "var_samp(`A`) "
    } ]
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