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[CALCITE-6205] Add BITAND_AGG, BITOR_AGG functions (enabled in Snowfl…
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…ake library)
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@tanclary
tanclary committed Jan 16, 2024
1 parent 24ea6be commit 274a8f7
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Showing 8 changed files with 161 additions and 231 deletions.
173 changes: 4 additions & 169 deletions core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
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Expand Up @@ -115,174 +115,7 @@
import static org.apache.calcite.linq4j.tree.ExpressionType.UnaryPlus;
import static org.apache.calcite.sql.fun.SqlInternalOperators.LITERAL_AGG;
import static org.apache.calcite.sql.fun.SqlInternalOperators.THROW_UNLESS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ACOSH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAYS_OVERLAP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAYS_ZIP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_AGG;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_APPEND;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_COMPACT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_CONCAT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_CONCAT_AGG;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_CONTAINS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_DISTINCT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_EXCEPT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_INSERT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_INTERSECT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_JOIN;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_LENGTH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_MAX;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_MIN;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_POSITION;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_PREPEND;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_REMOVE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_REPEAT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_REVERSE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_SIZE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_TO_STRING;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ARRAY_UNION;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ASINH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ATANH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.BIT_GET;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.BIT_LENGTH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.BOOL_AND;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.BOOL_OR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CEIL_BIG_QUERY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CHAR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CHR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CODE_POINTS_TO_BYTES;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CODE_POINTS_TO_STRING;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.COMPRESS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONCAT2;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONCAT_FUNCTION;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONCAT_FUNCTION_WITH_NULL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONCAT_WS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONCAT_WS_MSSQL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CONTAINS_SUBSTR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.COSH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.COTH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CSC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CSCH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.CURRENT_DATETIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATEADD;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATETIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATETIME_TRUNC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATE_FROM_UNIX_DATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATE_PART;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DATE_TRUNC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DAYNAME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.DIFFERENCE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ENDS_WITH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.EXISTS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.EXISTS_NODE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.EXTRACT_VALUE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.EXTRACT_XML;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FACTORIAL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FIND_IN_SET;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FLOOR_BIG_QUERY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FORMAT_DATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FORMAT_DATETIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FORMAT_NUMBER;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FORMAT_TIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FORMAT_TIMESTAMP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FROM_BASE32;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FROM_BASE64;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.FROM_HEX;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.GETBIT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ILIKE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.IS_INF;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.IS_NAN;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_DEPTH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_INSERT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_KEYS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_LENGTH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_PRETTY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_REMOVE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_REPLACE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_SET;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_STORAGE_SIZE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.JSON_TYPE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LEFT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LEVENSHTEIN;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LOG;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LOGICAL_AND;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LOGICAL_OR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.LPAD;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_CONCAT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_ENTRIES;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_FROM_ARRAYS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_FROM_ENTRIES;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_KEYS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAP_VALUES;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MAX_BY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MD5;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MIN_BY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.MONTHNAME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.OFFSET;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.ORDINAL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.PARSE_DATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.PARSE_DATETIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.PARSE_TIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.PARSE_TIMESTAMP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.PARSE_URL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.POW;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REGEXP_CONTAINS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REGEXP_EXTRACT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REGEXP_EXTRACT_ALL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REGEXP_INSTR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REGEXP_REPLACE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REPEAT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.REVERSE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.RIGHT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.RLIKE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.RPAD;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_ADD;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_CAST;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_DIVIDE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_MULTIPLY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_NEGATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_OFFSET;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_ORDINAL;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SAFE_SUBTRACT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SEC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SECH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SHA1;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SHA256;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SHA512;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SINH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SORT_ARRAY;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SOUNDEX;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SOUNDEX_SPARK;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SPACE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.SPLIT;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.STARTS_WITH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.STRCMP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.STR_TO_MAP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TANH;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIME;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIMESTAMP;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIMESTAMP_MICROS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIMESTAMP_MILLIS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIMESTAMP_SECONDS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIMESTAMP_TRUNC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TIME_TRUNC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TO_BASE32;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TO_BASE64;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TO_CHAR;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TO_CODE_POINTS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TO_HEX;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TRANSLATE3;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TRUNC;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.TRY_CAST;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.UNIX_DATE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.UNIX_MICROS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.UNIX_MILLIS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.UNIX_SECONDS;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.URL_DECODE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.URL_ENCODE;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.XML_TRANSFORM;
import static org.apache.calcite.sql.fun.SqlLibraryOperators.*;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.ABS;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.ACOS;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.ALL_EQ;
Expand Down Expand Up @@ -1041,6 +874,8 @@ Builder populate3() {
aggMap.put(LOGICAL_OR, minMax);
final Supplier<BitOpImplementor> bitop =
constructorSupplier(BitOpImplementor.class);
aggMap.put(BITAND_AGG, bitop);
aggMap.put(BITOR_AGG, bitop);
aggMap.put(BIT_AND, bitop);
aggMap.put(BIT_OR, bitop);
aggMap.put(BIT_XOR, bitop);
Expand Down Expand Up @@ -1793,7 +1628,7 @@ static class BitOpImplementor extends StrictAggImplementor {
if (SqlTypeUtil.isBinary(info.returnRelType())) {
start = Expressions.field(null, ByteString.class, "EMPTY");
} else {
Object initValue = info.aggregation() == BIT_AND ? -1L : 0;
Object initValue = info.aggregation().kind == SqlKind.BIT_AND ? -1L : 0;
start = Expressions.constant(initValue, info.returnType());
}

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10 changes: 10 additions & 0 deletions core/src/main/java/org/apache/calcite/sql/dialect/SnowflakeSqlDialect.java
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Expand Up @@ -43,6 +43,16 @@ public SnowflakeSqlDialect(Context context) {
@Override public void unparseCall(final SqlWriter writer, final SqlCall call, final int leftPrec,
final int rightPrec) {
switch (call.getKind()) {
case BIT_AND:
SqlCall bitAndCall = SqlLibraryOperators.BITAND_AGG
.createCall(SqlParserPos.ZERO, call.getOperandList());
super.unparseCall(writer, bitAndCall, leftPrec, rightPrec);
break;
case BIT_OR:
SqlCall bitOrCall = SqlLibraryOperators.BITOR_AGG
.createCall(SqlParserPos.ZERO, call.getOperandList());
super.unparseCall(writer, bitOrCall, leftPrec, rightPrec);
break;
case CHAR_LENGTH:
SqlCall lengthCall = SqlLibraryOperators.LENGTH
.createCall(SqlParserPos.ZERO, call.getOperandList());
Expand Down
19 changes: 18 additions & 1 deletion core/src/main/java/org/apache/calcite/sql/fun/SqlBitOpAggFunction.java
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Expand Up @@ -39,7 +39,7 @@ public class SqlBitOpAggFunction extends SqlAggFunction {

//~ Constructors -----------------------------------------------------------

/** Creates a SqlBitOpAggFunction. */
/** Creates a SqlBitOpAggFunction from a SqlKind. */
public SqlBitOpAggFunction(SqlKind kind) {
super(kind.name(),
null,
Expand All @@ -56,6 +56,23 @@ public SqlBitOpAggFunction(SqlKind kind) {
|| kind == SqlKind.BIT_XOR);
}

/** Creates a SqlBitOpAggFunction from a name and SqlKind. */
public SqlBitOpAggFunction(String name, SqlKind kind) {
super(name,
null,
kind,
ReturnTypes.ARG0_NULLABLE_IF_EMPTY,
null,
OperandTypes.INTEGER.or(OperandTypes.BINARY),
SqlFunctionCategory.NUMERIC,
false,
false,
Optionality.FORBIDDEN);
Preconditions.checkArgument(kind == SqlKind.BIT_AND
|| kind == SqlKind.BIT_OR
|| kind == SqlKind.BIT_XOR);
}

@Override public <T extends Object> @Nullable T unwrap(Class<T> clazz) {
if (clazz.isInstance(SqlSplittableAggFunction.SelfSplitter.INSTANCE)) {
return clazz.cast(SqlSplittableAggFunction.SelfSplitter.INSTANCE);
Expand Down
12 changes: 12 additions & 0 deletions core/src/main/java/org/apache/calcite/sql/fun/SqlLibraryOperators.java
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Expand Up @@ -2203,6 +2203,18 @@ private static RelDataType deriveTypeMapFromEntries(SqlOperatorBinding opBinding
InferTypes.FIRST_KNOWN,
OperandTypes.COMPARABLE_UNORDERED_COMPARABLE_UNORDERED);

/** The "BITAND_AGG(expression)" function. Equivalent to
* the standard "BIT_AND(expression)". */
@LibraryOperator(libraries = {SNOWFLAKE})
public static final SqlAggFunction BITAND_AGG =
new SqlBitOpAggFunction("BITAND_AGG", SqlKind.BIT_AND);

/** The "BITOR_AGG(expression)" function. Equivalent to
* the standard "BIT_OR(expression)". */
@LibraryOperator(libraries = {SNOWFLAKE})
public static final SqlAggFunction BITOR_AGG =
new SqlBitOpAggFunction("BITOR_AGG", SqlKind.BIT_OR);

/** The "BIT_LENGTH(string or binary)" function. */
@LibraryOperator(libraries = {SPARK})
public static final SqlFunction BIT_LENGTH =
Expand Down
2 changes: 2 additions & 0 deletions core/src/main/java/org/apache/calcite/sql2rel/StandardConvertletTable.java
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Expand Up @@ -137,6 +137,8 @@ private StandardConvertletTable() {
addAlias(SqlLibraryOperators.REGEXP_SUBSTR, SqlLibraryOperators.REGEXP_EXTRACT);
addAlias(SqlLibraryOperators.ENDSWITH, SqlLibraryOperators.ENDS_WITH);
addAlias(SqlLibraryOperators.STARTSWITH, SqlLibraryOperators.STARTS_WITH);
addAlias(SqlLibraryOperators.BITAND_AGG, SqlStdOperatorTable.BIT_AND);
addAlias(SqlLibraryOperators.BITOR_AGG, SqlStdOperatorTable.BIT_OR);

// Register convertlets for specific objects.
registerOp(SqlStdOperatorTable.CAST, this::convertCast);
Expand Down
22 changes: 22 additions & 0 deletions core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java
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Expand Up @@ -6661,6 +6661,28 @@ private void checkLiteral2(String expression, String expected) {
+ "CROSS JOIN `foodmart`.`department`";
sql(sql).withMysql().ok(expectedMysql);
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-6205">[CALCITE-6205]
* Add BITAND_AGG, BITOR_AGG functions (enabled in Snowflake library)</a>. */
@Test void testBitAndAgg() {
final String query = "select bit_and(\"product_id\")\n"
+ "from \"product\"";
final String expectedSnowflake = "SELECT BITAND_AGG(\"product_id\")\n"
+ "FROM \"foodmart\".\"product\"";
sql(query).withLibrary(SqlLibrary.SNOWFLAKE).withSnowflake().ok(expectedSnowflake);
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-6205">[CALCITE-6205]
* Add BITAND_AGG, BITOR_AGG functions (enabled in Snowflake library)</a>. */
@Test void testBitOrAgg() {
final String query = "select bit_or(\"product_id\")\n"
+ "from \"product\"";
final String expectedSnowflake = "SELECT BITOR_AGG(\"product_id\")\n"
+ "FROM \"foodmart\".\"product\"";
sql(query).withLibrary(SqlLibrary.SNOWFLAKE).withSnowflake().ok(expectedSnowflake);
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-6156">[CALCITE-6156]
Expand Down
2 changes: 2 additions & 0 deletions site/_docs/reference.md
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Expand Up @@ -2685,6 +2685,8 @@ In the following:
| s | SORT_ARRAY(array [, ascendingOrder]) | Sorts the *array* in ascending or descending order according to the natural ordering of the array elements. The default order is ascending if *ascendingOrder* is not specified. Null elements will be placed at the beginning of the returned array in ascending order or at the end of the returned array in descending order
| * | ASINH(numeric) | Returns the inverse hyperbolic sine of *numeric*
| * | ATANH(numeric) | Returns the inverse hyperbolic tangent of *numeric*
| f | BITAND_AGG(value) | Equivalent to `BIT_AND(value)`
| f | BITOR_AGG(value) | Equivalent to `BIT_OR(value)`
| s | BIT_LENGTH(binary) | Returns the bit length of *binary*
| s | BIT_LENGTH(string) | Returns the bit length of *string*
| s | BIT_GET(value, position) | Returns the bit (0 or 1) value at the specified *position* of numeric *value*. The positions are numbered from right to left, starting at zero. The *position* argument cannot be negative
Expand Down
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