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[Improvement](materialized-view) add approx_count_distinct/ndv to FunctionAlias rule (#31535)

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add approx_count_distinct/ndv to FunctionAlias rule
This commit is contained in:
Pxl
2024-02-29 11:01:34 +08:00
committed by yiguolei
parent d75204e947
commit 6af6997f1d
7 changed files with 156 additions and 3 deletions
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7
fe/fe-core/src/main/java/org/apache/doris/rewrite/FunctionAlias.java
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@ -27,8 +27,8 @@ import com.google.common.collect.ImmutableMap;
import java.util.Map;
/**
* Change functio name to function class name on nereids
* alias list: catalog/BuiltinScalarFunctions.java
* Change functio name to function class name on nereids alias list:
* catalog/BuiltinScalarFunctions.java
*/
public final class FunctionAlias implements ExprRewriteRule {
public static ExprRewriteRule INSTANCE = new FunctionAlias();
@ -41,7 +41,8 @@ public final class FunctionAlias implements ExprRewriteRule {
.put("inet_aton", "ipv4_string_to_num_or_null").put("inet6_ntoa", "ipv6_num_to_string")
.put("inet6_aton", "ipv6_string_to_num_or_null").put("lcase", "lower").put("add_months", "months_add")
.put("current_timestamp", "now").put("localtime", "now").put("localtimestamp", "now").put("ifnull", "nvl")
.put("rand", "random").put("sha", "sha1").put("substr", "substring").put("ucase", "upper").build();
.put("rand", "random").put("sha", "sha1").put("substr", "substring").put("ucase", "upper")
.put("approx_count_distinct", "ndv").build();
@Override
public Expr apply(Expr expr, Analyzer analyzer, ExprRewriter.ClauseType clauseType) throws AnalysisException {