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a bit of work on conversion functions

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vaclavt
2022-04-03 16:46:39 +02:00
parent aca52899fb
commit dadad69958
7 changed files with 81 additions and 25 deletions
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16
parser.h
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@@ -126,8 +126,10 @@ struct ColDefNode : Node {
struct FunctionNode : Node {
enum class Type {
to_string,
to_char,
to_date,
to_int,
to_float,
date_add,
pp,
lower,
@@ -139,13 +141,15 @@ struct FunctionNode : Node {
};
static Type get_function(const std::string &str) {
if (str=="to_string") return Type::to_string;
if (str=="to_char") return Type::to_char;
if (str=="to_date") return Type::to_date;
if (str=="to_int") return Type::to_int;
if (str=="to_float") return Type::to_float;
if (str=="date_add") return Type::date_add;
if (str=="pp") return Type::pp;
if (str=="lower") return Type::lower;
if (str=="upper") return Type::upper;
if (str=="coalesce") return Type::coalesce;
if (str=="coalesce") return Type::coalesce;
if (str=="min") return Type::min;
if (str=="max") return Type::max;
if (str=="count") return Type::count;
@@ -154,8 +158,10 @@ struct FunctionNode : Node {
};
static std::string function_name(const Type type) {
if (type == Type::to_string) return "to_string";
if (type == Type::to_char) return "to_char";
if (type == Type::to_date) return "to_date";
if (type == Type::to_int) return "to_int";
if (type == Type::to_float) return "to_float";
if (type == Type::date_add) return "date_add";
if (type == Type::pp) return "pp";
if (type == Type::lower) return "lower";
@@ -169,7 +175,7 @@ struct FunctionNode : Node {
};
Type function;
Type function;
std::vector<std::unique_ptr<Node>> params;
FunctionNode(std::string func_name, std::vector<std::unique_ptr<Node>> pars) :