snuyanzin commented on code in PR #22063: URL: https://github.com/apache/flink/pull/22063#discussion_r1144862356
########## flink-table/flink-sql-client/src/main/resources/keywords.properties: ########## @@ -0,0 +1,20 @@ +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to you under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# Resources for the Apache Calcite project. +# See wrapper class org.apache.calcite.runtime.CalciteResource. +# +default=ABS;ALL;ALLOCATE;ALLOW;ALTER;AND;ANY;ARE;ARRAY;ARRAY_AGG;ARRAY_CONCAT_AGG;ARRAY_MAX_CARDINALITY;AS;ASENSITIVE;ASYMMETRIC;AT;ATOMIC;AUTHORIZATION;AVG;BEGIN;BEGIN_FRAME;BEGIN_PARTITION;BETWEEN;BIGINT;BINARY;BIT;BLOB;BOOLEAN;BOTH;BY;BYTES;CALL;CALLED;CARDINALITY;CASCADED;CASE;CAST;CATALOGS;CEIL;CEILING;CHAR;CHARACTER;CHARACTER_LENGTH;CHAR_LENGTH;CHECK;CLASSIFIER;CLOB;CLOSE;COALESCE;COLLATE;COLLECT;COLUMN;COMMENT;COMMIT;CONDITION;CONNECT;CONSTRAINT;CONTAINS;CONVERT;CORR;CORRESPONDING;COUNT;COVAR_POP;COVAR_SAMP;CREATE;CROSS;CUBE;CUME_DIST;CURRENT;CURRENT_CATALOG;CURRENT_DATE;CURRENT_DEFAULT_TRANSFORM_GROUP;CURRENT_PATH;CURRENT_ROLE;CURRENT_ROW;CURRENT_SCHEMA;CURRENT_TIME;CURRENT_TIMESTAMP;CURRENT_TRANSFORM_GROUP_FOR_TYPE;CURRENT_USER;CURSOR;CYCLE;DATABASES;DATE;DAY;DEALLOCATE;DEC;DECIMAL;DECLARE;DEFAULT;DEFINE;DELETE;DENSE_RANK;DEREF;DESCRIBE;DETERMINISTIC;DISALLOW;DISCONNECT;DISTINCT;DOT;DOUBLE;DROP;DYNAMIC;EACH;ELEMENT;ELSE;EMPTY;END;END-EXEC;END_FRAME;END_PARTITION;EQUALS;ESCA PE;EVERY;EXCEPT;EXEC;EXECUTE;EXISTS;EXP;EXPLAIN;EXTEND;EXTENDED;EXTERNAL;EXTRACT;FALSE;FETCH;FILTER;FIRST_VALUE;FLOAT;FLOOR;FOR;FOREIGN;FRAME_ROW;FREE;FROM;FULL;FUNCTION;FUNCTIONS;FUSION;GET;GLOBAL;GRANT;GROUP;GROUPING;GROUPS;GROUP_CONCAT;HAVING;HOLD;HOUR;IDENTITY;ILIKE;IMPORT;IN;INCLUDE;INDICATOR;INITIAL;INNER;INOUT;INSENSITIVE;INSERT;INT;INTEGER;INTERSECT;INTERSECTION;INTERVAL;INTO;IS;JOIN;JSON_ARRAY;JSON_ARRAYAGG;JSON_EXISTS;JSON_OBJECT;JSON_OBJECTAGG;JSON_QUERY;JSON_VALUE;LAG;LANGUAGE;LARGE;LAST_VALUE;LATERAL;LEAD;LEADING;LEFT;LIKE;LIKE_REGEX;LIMIT;LN;LOCAL;LOCALTIME;LOCALTIMESTAMP;LOWER;MATCH;MATCHES;MATCH_NUMBER;MATCH_RECOGNIZE;MAX;MEASURES;MEMBER;MERGE;METHOD;MIN;MINUS;MINUTE;MOD;MODIFIES;MODIFY;MODULE;MODULES;MONTH;MULTISET;NATIONAL;NATURAL;NCHAR;NCLOB;NEW;NEXT;NO;NONE;NORMALIZE;NOT;NTH_VALUE;NTILE;NULL;NULLIF;NUMERIC;OCCURRENCES_REGEX;OCTET_LENGTH;OF;OFFSET;OLD;OMIT;ON;ONE;ONLY;OPEN;OR;ORDER;OUT;OUTER;OVER;OVERLAPS;OVERLAY;PARAMETER;PARTITION;PATTERN;PER;PERCENT;PERCENTILE_ CONT;PERCENTILE_DISC;PERCENT_RANK;PERIOD;PERMUTE;PIVOT;PORTION;POSITION;POSITION_REGEX;POWER;PRECEDES;PRECISION;PREPARE;PREV;PRIMARY;PROCEDURE;RANGE;RANK;RAW;READS;REAL;RECURSIVE;REF;REFERENCES;REFERENCING;REGR_AVGX;REGR_AVGY;REGR_COUNT;REGR_INTERCEPT;REGR_R2;REGR_SLOPE;REGR_SXX;REGR_SXY;REGR_SYY;RELEASE;RENAME;RESET;RESULT;RETURN;RETURNS;REVOKE;RIGHT;RLIKE;ROLLBACK;ROLLUP;ROW;ROWS;ROW_NUMBER;RUNNING;SAVEPOINT;SCALA;SCOPE;SCROLL;SEARCH;SECOND;SEEK;SELECT;SENSITIVE;SEPARATOR;SESSION_USER;SET;SHOW;SIMILAR;SKIP;SMALLINT;SOME;SPECIFIC;SPECIFICTYPE;SQL;SQLEXCEPTION;SQLSTATE;SQLWARNING;SQRT;START;STATEMENT;STATIC;STDDEV_POP;STDDEV_SAMP;STREAM;STRING;STRING_AGG;SUBMULTISET;SUBSET;SUBSTRING;SUBSTRING_REGEX;SUCCEEDS;SUM;SYMMETRIC;SYSTEM;SYSTEM_TIME;SYSTEM_USER;TABLE;TABLES;TABLESAMPLE;THEN;TIME;TIMESTAMP;TIMESTAMP_LTZ;TIMEZONE_HOUR;TIMEZONE_MINUTE;TINYINT;TO;TRAILING;TRANSLATE;TRANSLATE_REGEX;TRANSLATION;TREAT;TRIGGER;TRIM;TRIM_ARRAY;TRUE;TRUNCATE;UESCAPE;UNION;UNIQUE;UNKNOWN;UNNEST;UNPIVOT; UPDATE;UPPER;UPSERT;USE;USER;USING;VALUE;VALUES;VALUE_OF;VARBINARY;VARCHAR;VARYING;VAR_POP;VAR_SAMP;VERSIONING;VIEWS;WATERMARK;WATERMARKS;WHEN;WHENEVER;WHERE;WIDTH_BUCKET;WINDOW;WITH;WITHIN;WITHOUT;YEAR Review Comment: I used the code snippet below it allows to extract some Flink specific keywords like `MATCH_RECOGNIZE` which is not a keyword in Calcite or SQL Standard e.g. ```java public class KeywordsExtractor { public static void main(String[] args) { EnvironmentSettings es = EnvironmentSettings.newInstance().inStreamingMode().build(); LocalStreamEnvironment lse = StreamExecutionEnvironment.createLocalEnvironment(1); StreamTableEnvironmentImpl ste = (StreamTableEnvironmentImpl) StreamTableEnvironmentImpl.create(lse, es); FlinkContext context = ((PlannerBase)ste.getPlanner()).plannerContext().getFlinkContext(); // taken from org.apache.flink.table.planner.delegation.PlannerContext#getSqlParserConfig // since PlannerContext#getSqlParserConfig is private SqlParser.Config config = JavaScalaConversionUtil.<SqlParser.Config>toJava( TableConfigUtils.getCalciteConfig(context.getTableConfig()).getSqlParserConfig()) .orElseGet( // we use Java lex because back ticks are easier than double quotes in // programming and cases are preserved () -> { SqlConformance conformance = getSqlConformance(context); return SqlParser.config() .withParserFactory(FlinkSqlParserFactories.create(conformance)) .withConformance(conformance) .withLex(Lex.JAVA) .withIdentifierMaxLength(256); }); SqlAbstractParserImpl parser = config.parserFactory().getParser(new SourceStringReader("")); System.out.println(String.join(";", parser.getMetadata().getJdbcKeywords().split(","))); } // Taken from org.apache.flink.table.planner.delegation.PlannerContext#getSqlConformance // since PlannerContext#getSqlConformance is private private static FlinkSqlConformance getSqlConformance(FlinkContext context) { SqlDialect sqlDialect = context.getTableConfig().getSqlDialect(); switch (sqlDialect) { // Actually, in Hive dialect, we won't use Calcite parser. // So, we can just use Flink's default sql conformance as a placeholder case HIVE: case DEFAULT: return FlinkSqlConformance.DEFAULT; default: throw new TableException("Unsupported SQL dialect: " + sqlDialect); } } } ``` -- This is an automated message from the Apache Git Service. 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