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joins_sq.jl
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joins_sq.jl
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function gbq_join_parse(input)
input = string(input)
parts = split(input, ".")
if current_sql_mode[] == gbq() && length(parts) >=2
return join(parts[2:end], ".")
else
return input
end
end
"""
$docstring_left_join
"""
macro left_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" LEFT JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " LEFT JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end
"""
$docstring_right_join
"""
macro right_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" RIGHT JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " RIGHT JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end
"""
$docstring_inner_join
"""
macro inner_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" INNER JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " INNER JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end
"""
$docstring_full_join
"""
macro full_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" FULL JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " FULL JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end
"""
$docstring_semi_join
"""
macro semi_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" SEMI JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " SEMI JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end
"""
$docstring_anti_join
"""
macro anti_join(sqlquery, join_table, lhs_column, rhs_column)
# Convert column references to string
lhs_col_str = string(lhs_column)
rhs_col_str = string(rhs_column)
join_table = QuoteNode(join_table)
return quote
sq = $(esc(sqlquery))
if isa(sq, SQLQuery)
needs_new_cte = !isempty(sq.select) || !isempty(sq.where) || sq.is_aggregated || !isempty(sq.ctes)
if needs_new_cte
sq.cte_count += 1
cte_name = "cte_" * string(sq.cte_count)
most_recent_source = !isempty(sq.ctes) ? "cte_" * string(sq.cte_count - 1) : sq.from
join_sql = " " * most_recent_source * ".*, " * string(gbq_join_parse($(esc(join_table)))) * ".* FROM " * gbq_join_parse(most_recent_source) *
" ANTI JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(most_recent_source), ".", $rhs_col_str)
# Create and add the new CTE
new_cte = CTE(name=cte_name, select=join_sql)
push!(sq.ctes, new_cte)
# Update the FROM clause
sq.from = cte_name
else
join_clause = " ANTI JOIN " * string($(esc(join_table))) * " ON " * string(gbq_join_parse($(esc(join_table))), ".", $lhs_col_str, " = ", gbq_join_parse(sq.from), ".", $rhs_col_str)
sq.from *= join_clause
end
if current_sql_mode[] != :athena
new_metadata = get_table_metadata(sq.db, string($(esc(join_table))))
else
new_metadata = get_table_metadata_athena(sq.db, string($(esc(join_table))), sq.athena_params)
end
sq.metadata = vcat(sq.metadata, new_metadata)
else
error("Expected sqlquery to be an instance of SQLQuery")
end
sq
end
end