expressions sql_join.ts

100% Statements 19/19

100% Branches 1/1

100% Functions 1/1

100% Lines 19/19

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1x import {seq, optPrio, altPrio, Expression, ver, AlsoIn, regex as reg} from "../combi";
import {SQLCond} from ".";
import {IStatementRunnable} from "../statement_runnable";
import {Release} from "../../../version";
import {SQLJoinSource} from "./sql_join_source";
 
export class SQLJoin extends Expression {
  public getRunnable(): IStatementRunnable {
    const joinType = seq(optPrio(altPrio("INNER", "LEFT OUTER", "LEFT", "RIGHT OUTER", "RIGHT")), "JOIN");
 
    const joinTag = optPrio(ver(Release.v795, reg(/^#[A-Z][A-Z0-9_]*$/i)));
 
    const join = seq(joinType, joinTag, new SQLJoinSource(), "ON", SQLCond);
 
    const crossJoin = ver(Release.v750, seq("CROSS JOIN", joinTag, new SQLJoinSource()), {also: AlsoIn.OpenABAP});
 
    return altPrio(crossJoin, join);
  }
}