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created separate duckdb parser,change duckdb to default parser.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| function expr_to_sql_duckdb(expr, sq; from_summarize::Bool) | ||
| expr = exc_capture_bug(expr, names_to_modify) | ||
| MacroTools.postwalk(expr) do x | ||
| # Handle basic arithmetic and functions | ||
| if @capture(x, a_ + b_) | ||
| return :($a + $b) | ||
| elseif @capture(x, a_ - b_) | ||
| return :($a - $b) | ||
| elseif @capture(x, a_ * b_) | ||
| return :($a * $b) | ||
| elseif @capture(x, a_ / b_) | ||
| return :($a / $b) | ||
| elseif @capture(x, a_ ^ b_) | ||
| return :(POWER($a, $b)) | ||
| elseif @capture(x, round(a_)) | ||
| return :(ROUND($a)) | ||
| elseif @capture(x, round(a_, b_)) | ||
| return :(ROUND($a, $b)) | ||
| elseif @capture(x, mean(a_)) | ||
| if from_summarize | ||
| return :(AVG($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "AVG($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, minimum(a_)) | ||
| if from_summarize | ||
| return :(MIN($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "MIN($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, maximum(a_)) | ||
| if from_summarize | ||
| return :(MAX($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "MAX($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, sum(a_)) | ||
| if from_summarize | ||
| return :(SUM($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "SUM($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, cumsum(a_)) | ||
| if from_summarize | ||
| error("cumsum is only available through a windowed @mutate") | ||
| else | ||
| # sq.windowFrame = "ROWS UNBOUNDED PRECEDING " | ||
| window_clause = construct_window_clause(sq, from_cumsum = true) | ||
| return "SUM($(string(a))) $(window_clause)" | ||
| end | ||
| #stats agg | ||
| elseif @capture(x, std(a_)) | ||
| if from_summarize | ||
| return :(STDDEV_SAMP($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq, ) | ||
| return "STDDEV_SAMP($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, cor(a_, b_)) | ||
| if from_summarize | ||
| return :(CORR($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "CORR($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, cov(a_, b_)) | ||
| if from_summarize | ||
| return :(COVAR_SAMP($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "COVAR_SAMP($(string(a))) $(window_clause)" | ||
| end | ||
| elseif @capture(x, var(a_)) | ||
| if from_summarize | ||
| return :(VAR_SAMP($a)) | ||
| else | ||
| window_clause = construct_window_clause(sq) | ||
| return "VAR_SAMP($(string(a))) $(window_clause)" | ||
| end | ||
| #stringr functions, have to use function that removes _ so capture can capture name | ||
| elseif @capture(x, strreplaceall(str_, pattern_, replace_)) | ||
| return :(REGEXP_REPLACE($str, $pattern, $replace, 'g')) | ||
| elseif @capture(x, strreplace(str_, pattern_, replace_)) | ||
| return :(REGEXP_REPLACE($str, $pattern, $replace)) | ||
| elseif @capture(x, strremoveall(str_, pattern_)) | ||
| return :(REGEXP_REPLACE($str, $pattern, "g")) | ||
| elseif @capture(x, strremove(str_, pattern_)) | ||
| return :(REGEXP_REPLACE($str, $pattern, "")) | ||
| elseif @capture(x, startswith(str_, pattern_)) | ||
| return :(starts_with($str, $pattern)) | ||
| elseif @capture(x, endswith(str_, pattern_)) | ||
| return :(ends_with($str, $pattern)) | ||
| elseif @capture(x, contains(str_, pattern_)) | ||
| return :(contains($str, $pattern)) | ||
| elseif @capture(x, ismissing(a_)) | ||
| return "($(string(a)) IS NULL)" | ||
| # Date extraction functions | ||
| elseif @capture(x, year(a_)) | ||
| return "EXTRACT(YEAR FROM " * string(a) * ")" | ||
| elseif @capture(x, month(a_)) | ||
| return "EXTRACT(MONTH FROM " * string(a) * ")" | ||
| elseif @capture(x, day(a_)) | ||
| return "EXTRACT(DAY FROM " * string(a) * ")" | ||
| elseif @capture(x, hour(a_)) | ||
| return "EXTRACT(HOUR FROM " * string(a) * ")" | ||
| elseif @capture(x, minute(a_)) | ||
| return "EXTRACT(MINUTE FROM " * string(a) * ")" | ||
| elseif @capture(x, second(a_)) | ||
| return "EXTRACT(SECOND FROM " * string(a) * ")" | ||
| elseif @capture(x, floordate(time_column_, unit_)) | ||
| return :(DATE_TRUNC($unit, $time_column)) | ||
| elseif @capture(x, difftime(endtime_, starttime_, unit_)) | ||
| return :(date_diff($unit, $starttime, $endtime)) | ||
| elseif @capture(x, replacemissing(column_, replacement_value_)) | ||
| return :(COALESCE($column, $replacement_value)) | ||
| elseif @capture(x, missingif(column_, value_to_replace_)) | ||
| return :(NULLIF($column, $value_to_replace)) | ||
| elseif isa(x, Expr) && x.head == :call | ||
| if x.args[1] == :if_else && length(x.args) == 4 | ||
| return parse_if_else(x) | ||
| elseif x.args[1] == :as_float && length(x.args) == 2 | ||
| column = x.args[2] | ||
| return "CAST(" * string(column) * " AS DECIMAL)" | ||
| elseif x.args[1] == :as_integer && length(x.args) == 2 | ||
| column = x.args[2] | ||
| return "CAST(" * string(column) * " AS INT)" | ||
| elseif x.args[1] == :as_string && length(x.args) == 2 | ||
| column = x.args[2] | ||
| return "CAST(" * string(column) * " AS STRING)" | ||
| elseif x.args[1] == :case_when | ||
| return parse_case_when(x) | ||
| elseif isa(x, Expr) && x.head == :call && x.args[1] == :! && x.args[1] != :!= && length(x.args) == 2 | ||
| inner_expr = expr_to_sql_duckdb(x.args[2], sq, from_summarize = false) # Recursively transform the inner expression | ||
| return string("NOT (", inner_expr, ")") | ||
| elseif x.args[1] == :str_detect && length(x.args) == 3 | ||
| column, pattern = x.args[2], x.args[3] | ||
| return string(column, " LIKE \'%", pattern, "%'") | ||
| elseif isa(x, Expr) && x.head == :call && x.args[1] == :n && length(x.args) == 1 | ||
| return "COUNT(*)" | ||
| end | ||
| end | ||
| return x | ||
| end | ||
| end |
File renamed without changes.
File renamed without changes.
File renamed without changes.