export const functions = [
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_9_set_function_specification
    'GROUPING',
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_10_window_function
    'RANK',
    'DENSE_RANK',
    'PERCENT_RANK',
    'CUME_DIST',
    'ROW_NUMBER',
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_27_numeric_value_function
    'POSITION',
    'OCCURRENCES_REGEX',
    'POSITION_REGEX',
    'EXTRACT',
    'CHAR_LENGTH',
    'CHARACTER_LENGTH',
    'OCTET_LENGTH',
    'CARDINALITY',
    'ABS',
    'MOD',
    'LN',
    'EXP',
    'POWER',
    'SQRT',
    'FLOOR',
    'CEIL',
    'CEILING',
    'WIDTH_BUCKET',
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_29_string_value_function
    'SUBSTRING',
    'SUBSTRING_REGEX',
    'UPPER',
    'LOWER',
    'CONVERT',
    'TRANSLATE',
    'TRANSLATE_REGEX',
    'TRIM',
    'OVERLAY',
    'NORMALIZE',
    'SPECIFICTYPE',
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_31_datetime_value_function
    'CURRENT_DATE',
    'CURRENT_TIME',
    'LOCALTIME',
    'CURRENT_TIMESTAMP',
    'LOCALTIMESTAMP',
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_6_38_multiset_value_function
    // SET serves multiple roles: a SET() function and a SET keyword e.g. in UPDATE table SET ...
    // multiset
    // 'SET', (disabled for now)
    // https://jakewheat.github.io/sql-overview/sql-2008-foundation-grammar.html#_10_9_aggregate_function
    'COUNT',
    'AVG',
    'MAX',
    'MIN',
    'SUM',
    // 'EVERY',
    // 'ANY',
    // 'SOME',
    'STDDEV_POP',
    'STDDEV_SAMP',
    'VAR_SAMP',
    'VAR_POP',
    'COLLECT',
    'FUSION',
    'INTERSECTION',
    'COVAR_POP',
    'COVAR_SAMP',
    'CORR',
    'REGR_SLOPE',
    'REGR_INTERCEPT',
    'REGR_COUNT',
    'REGR_R2',
    'REGR_AVGX',
    'REGR_AVGY',
    'REGR_SXX',
    'REGR_SYY',
    'REGR_SXY',
    'PERCENTILE_CONT',
    'PERCENTILE_DISC',
    // CAST is a pretty complex case, involving multiple forms:
    // - CAST(col AS int)
    // - CAST(...) WITH ...
    // - CAST FROM int
    // - CREATE CAST(mycol AS int) WITH ...
    'CAST',
    // Shorthand functions to use in place of CASE expression
    'COALESCE',
    'NULLIF',
    // Non-standard functions that have widespread support
    'ROUND',
    'SIN',
    'COS',
    'TAN',
    'ASIN',
    'ACOS',
    'ATAN',
];
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