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21 lines
709 B
C++
21 lines
709 B
C++
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#pragma once
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#include <Core/Names.h>
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#include <Parsers/IAST_fwd.h>
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#include <base/types.h>
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namespace DB
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{
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/// Replace missed Object(Nullable('json')) subcolumns to NULL in query.
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void replaceMissedSubcolumnsInQuery(ASTPtr & ast, const String & column_name);
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/// Return true if the ASTFunction has missed object subcolumns.
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/// Resolving ASTFunction independently is because we may lose the column name of missed object subcolumns.
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/// For example, if `b.d` is a missed object subcolumn, the column name of `b.d * 2 + 3` will be `plus(multiply(NULL, 2), 3)`,
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/// while we want to keep it as `plus(multiply(b.d, 2), 3)`.
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bool replaceMissedSubcolumnsInFunction(ASTPtr & ast, const String & column_name);
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}
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