Data type conversion
Data type conversion reference
This document describes default conversions of data types of supported databases into target redis data types.
General ANSI SQL data types
| Source data type | Target data type for HASH | Example for HASH |
|---|---|---|
| array | not supported | |
| bigint | string | 2147483648 will be saved as '2147483648' |
| binary | bytes string bytes or base64-encoded String, or a hex-encoded String, based on the connector configuration property setting binary.handling.mode |
When binary.handling.mode = bytes the string 'hello' will be added to the table as the binary string '0x68656C6C6F',will be converted by Debezium to 'aGVsbG8AAAAAAAAAAAAAAAAAAAA=' and will be stored in Redis target database as: 'aGVsbG8AAAAAAAAAAAAAAAAAAAA=' |
| bit string | not supported | |
| blob | bytes string bytes or base64-encoded String, or a hex-encoded String, based on the connector configuration property setting binary.handling.mode |
When binary.handling.mode = bytes the binary image file ,which was loaded into the table ,will be converted by Debezium to bytes and will be stored in Redis target database as bytes string |
| boolean | string | The boolean value: false will be converted by the Applier to 0 and will be saved in Redis target database as the string '0' |
| char | string | When PostgreSQL data type is char(14) 'hello world' will be saved as 'hello world ' |
| date | string Mapped to ms.microsec since epoch |
PG field value: '2021-01-29' will be converted by Debezium to the int 18656 (number of dates since epoch), which will be converted to number of ms since epoch and will be stored in Redis target database as: '1611878400000' |
| integer | string | 2147483640 will be saved as '2147483640' |
| interval | not supported | |
| null | The field with null value will be sent by Debezium as null and will not be stored in Redis target database |
|
| numeric | string Debezium configuration parameter decimal.handling.mode determines how the connector maps decimal values.When decimal.handling.mode = 'precision' the binary string,recieved by Debezium,will be converted to its corresponding numeric value and will be stored in Redis target database as string |
PG field value: 4521398.56 will be converted by Debezium to binary string 'GvMbUA==', which will be converted to numeric value and will be stored in Redis target database as: '4521398.56' |
| smallint | string | 32767 will be saved as '32767' |
| text | string | 'This is a very long text for the PostgreSQL text column' |
| time | string mapped to number of seconds past midnight |
'14:23:46' will be converted to '51826000000' sec |
| PostgreSQL, Oracle, Cassandra: timestamp MySQL, SQL Server: datetime |
string mapped to ms.microsec since epoch. SQL Server datetime format: YYYY-MM-DD hh:mm:ss[.nnn], range: 1753-01-01 through 9999-12-31 |
PG field value: '2018-06-20 15:13:16.945104' will be converted by Debezium to '1529507596945104'(micro seconds) and will be stored in Redis target database as '1529507596945.104' |
| PosrgreSQL: timestamptz Oracle: timestamp with local timezone MySQL: timestamp |
string converted to UTC and stored as number of ms.microsec since epoch |
|
| timetz | string converted to UTC and stored as number of seconds past midnight |
PG field value: '14:23:46.12345' will be converted by Debezium to the string '12:23:46.12345Z' and will be stored in Redis target database as: '44638.345' |
| varbinary | bytes string bytes or base64-encoded String, or a hex-encoded String, based on the connector configuration property setting binary.handling.mode |
When binary.handling.mode = bytes the string 'hello' will be added to the table as the binary string '0x68656C6C6F',will be converted by Debezium to 'aGVsbG8=' and will be stored in Redis target database as: 'aGVsbG8=' |
| varchar | string | 'hello world' will be saved as 'hello world' |
| xml | string |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| array | not supported | |
| bigint | number | 2147483648 will be saved as 2147483648 |
| binary | bytes string | When binary.handling.mode = bytes the string 'hello' will be added to the table as the binary string '0x68656C6C6F',will be converted by Debezium to 'aGVsbG8AAAAAAAAAAAAAAAAAAAA=' and will be stored in Redis target database as: 'aGVsbG8AAAAAAAAAAAAAAAAAAAA=' |
| bit string | not supported | |
| blob | bytes string | When binary.handling.mode = bytes the binary image file ,which was loaded into the table ,will be converted by Debezium to bytes and will be stored in Redis target database as bytes string |
| boolean | boolean | The boolean value:true will be saved in Redis target database as boolean data type with value True |
| char | string | When PostgreSQL data type is char(14) 'hello world' will be saved as 'hello world ' |
| date | number Mapped to ms.microsec since epoch |
PG field value: 2021-01-29 will be converted by Debezium to the int 18656 (number of dates since epoch), which will be converted to number of ms since epoch and will be stored in Redis target database as: 1611878400000 |
| integer | number | 2147483640 will be saved as 2147483640 |
| interval | not supported | |
| null | The field with null value will be sent by Debezium as null and will be stored in Redis target database with the value null |
|
| numeric | Debezium configuration parameter decimal.handling.mode determines how the connector maps decimal values. When decimal.handling.mode = 'precision' the binary string received by Debezium will be converted to its corresponding numeric value and will be stored in Redis target database db as number. When decimal.handling.mode = 'string' the string ,received by Debezium, will be stored in Redis target database as string. When decimal.handling.mode = 'double' the double value received by Debezium will be stored in Redis target database as number. |
decimal.handling.mode = string: PG field value: 4521398.56 will be recieved by Debezium as the string '4521398.56', and will be stored in Redis target database as the string: '4521398.56' . |
| smallint | number | 32767 will be saved as 32767 |
| text | string | |
| time | number number mapped to the number of seconds past midnight |
'14:23:46' will be converted to 51826000000 sec |
| PostgreSQL, Oracle, Cassandra: timestamp MySQL, SQL Server: datetime |
decimal mapped to ms.microsec since epoch. SQL Server datetime format: YYYY-MM-DD hh:mm:ss[.nnn], range: 1753-01-01 through 9999-12-31 |
PG field value: '2018-06-20 15:13:16.945104' will be converted by Debezium to '1529507596945104'(micro seconds) and will be stored in Redis target database as `1529507596945.104 |
| PosrgreSQL: timestamptz Oracle: timestamp with local timezone MySQL: timestamp |
number converted to UTC and stored as number of ms.microsec since epoch |
|
| timetz | number converted to UTC and stored as number of ms.microsec since epoch |
PG field value: '14:23:46.12345' will be converted by Debezium to the string '12:23:46.12345Z' and will be stored in Redis target database as: 44638.345 |
| varbinary | bytes string bytes or base64-encoded String, or a hex-encoded String, based on the connector configuration property setting binary.handling.mode |
When binary.handling.mode = bytes the string 'hello' will be added to the table as the binary string '0x68656C6C6F',will be converted by Debezium to 'aGVsbG8=' and will be stored in Redis target database as: 'aGVsbG8=' |
| varchar | string | 'hello world' will be saved as 'hello world’ |
| xml | string |
Cassandra data types
| Source data type | Target data type for HASH | Example for HASH |
|---|---|---|
| ascii | string | |
| counter (64-bit long) | string | 2 |
| date | not supported | |
| decimal | not supported | |
| double | string | '1.007308023' |
| duration | not supported | |
| float | string | The number -3.4E+38 will be received by debezium as -3.4E38, will be converted by the Applier to -340000000000000000000000000000000000000 and will be saved in Redis target database as '-340000000000000000000000000000000000000' |
| frozen | string | {'10.10.11.1', '10.10.10.1', '10.10.12.1'} will be saved in Redis target database as a string: '{'10.10.11.1', '10.10.10.1', '10.10.12.1'}' |
| frozen udt | string | {'city': 'City','street': 'Street','streetno': 2,'zipcode': '02-212'} will be saved in Redis target database as a string: '{'city': 'City','street': 'Street','streetno': 2,'zipcode': '02-212'}' |
| inet | string IPv4 and IPv6 network addresses |
The IP address 4.35.221.243 will be converted by debezium to '/4.35.221.243' and will be saved in Redis target database as '/4.35.221.243' |
| list | string | The list ['New York', 'Paris','London','New York'] will be sent by debezium as array of strings: ['New York', 'Paris','London','New York'] and will be saved in Redis target database as the string "['New York', 'Paris','London','New York']" |
| map | string | {'fruit' : 'Apple', 'band' : 'Beatles'} will be saved in Redis target database as a string: '{'fruit' : 'Apple', 'band' : 'Beatles'}' |
| set | string | The set {'y','n'} will be saved in Redis target database as the string `'{'y','n'}' |
| tinyint | string | |
| uuid | string | b9980b96-a85b-411c-b8e7-4be55c123793 |
| tuple | string | The tuple { "field1": 1, "field2": "testing tuple", "field3": 2 } will be saved in Redis target database as a string: ' { "field1": 1, "field2": "testing tuple", "field3": 2 }' |
| varint | not supported |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| ascii | string | |
| counter (64-bit long) | number | 2 |
| date | not supported | |
| decimal | not supported | |
| double | number | 1.007308023 |
| duration | not supported | |
| float | number | The number -3.4E+38 will be received by debezium as -3.4E38 and will be saved in Redis target database as -1e+38 |
| frozen | array | {'10.10.11.1', '10.10.10.1', '10.10.12.1'} will be saved in Redis target database as an array: {'/10.10.11.1', '/10.10.10.1', '/10.10.12.1'} |
| frozen udt | object | {'city': 'City','street': 'Street','streetno': 2,'zipcode': '02-212'} will be saved in Redis target database as string will be saved in Redis target database as an object: {'city': 'City','street': 'Street','streetno': 2,'zipcode': '02-212'} |
| inet | string IPv4 and IPv6 network addresses |
The IP address 4.35.221.243 will be converted by debezium to '/4.35.221.243' and will be saved in Redis target database as '/4.35.221.243' |
| list | array | The list ['New York', 'Paris','London','New York'] will be sent by debezium as array of strings: ['New York', 'Paris','London','New York'] and will be saved in Redis target database as an array: ['New York', 'Paris','London','New York'] |
| map | object | {'fruit' : 'Apple', 'band' : 'Beatles'} will be saved in Redis target database as an object: {'fruit' : 'Apple', 'band' : 'Beatles'} |
| set | array | The set {'y','n'} will be saved in Redis target database as an array: {'y','n'} |
| tinyint | ||
| uuid | string | b9980b96-a85b-411c-b8e7-4be55c123793 |
| tuple | object | The tuple { "field1": 1, "field2": "testing tuple", "field3": 2 } will be saved in Redis target database as an object: { "field1": 1, "field2": "testing tuple", "field3": 2 } |
| varint | not supported |
MySQL and MariaDB data types
| Source data type | Source data type for HASH | Example for Hash |
|---|---|---|
| enum | string | MySQL enum value 'cat' will be stored in Redis target database as 'cat' |
| geometry | not supported | |
| geometrycollection | not supported | |
| json | string | {"pid": 102, "name": "name2"} |
| linestring | not supported | |
| multilinestring | not supported | |
| multipoint | not supported | |
| multypolygon | not supported | |
| polygon | not supported | |
| set | string | '1,2,3' will be stored in Redis target database as: '1,2,3' |
| year | string | The value '55' will be stored in the database as 2055 and will be sent by Debezium as int32 data type with value 2055. It will be stored in Redis target database as the string '2055' as well |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| enum | string | MySQL enum value 'cat' will be stored in Redis target database as 'cat' |
| geometry | not supported | |
| geometrycollection | not supported | |
| json | object | {"pid": 102, "name": "name2"} |
| linestring | not supported | |
| multilinestring | not supported | |
| multipoint | not supported | |
| multypolygon | not supported | |
| polygon | not supported | |
| set | string | '1,2,3' will be stored in Redis target database as: '1,2,3' |
| year | number | The value '55' will be stored in the database as 2055 and will be sent by Debezium as int32 data type with value 2055. It will be stored in Redis target database as the number 2055 as well |
Oracle data types
| Source data type | Source data type for HASH | Example for Hash |
|---|---|---|
| bfile | not supported | |
| binary_double | string | '1.7E+308' |
| binary_float | string | '3.40282E38' |
| clob | string | large block of text |
| float,real,double precision real = FLOAT(63),double precision = FLOAT(126). |
string | The value -3.402E+38 will be saved in Redis target database as the string '-340200000000000000000000000000000000000' when Debezium configuration parameter decimal.handling.mode = 'double' |
| long raw | not supported | |
| nchar | string - is Unicode data type that can store Unicode characters | The string 'testing hebrew שלום' will be stored in Redis target database as 'testing hebrew \xd7\xa9\xd7\x9c\xd7\x95\xd7\x9d ' |
| nclob | not supported | |
| number(p,s) | string | '10385274000.32' |
| nvarchar | string - is Unicode data type that can store Unicode characters | The string testing hebrew שלום' will be stored in Redis target database as 'testing hebrew \xd7\xa9\xd7\x9c\xd7\x95\xd7\x9d' |
| raw | not supported | |
| rowid | string | AAAR1QAAOAAAACFAAA |
| timestamp with tz | string | '2021-12-30 14:23:46' will be converted by Debezium to the string '2021-12-30T14:23:46+02:00' and will be stored in Redis target database as the string: '1611878400000' which is the number of ms since epoch |
| urowid | not supported |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| bfile | not supported | |
| binary_double | number | 1.7E+308 |
| binary_float | number | 3.40282E38 |
| clob | string | large block of text |
| float,real,double precision real = FLOAT(63),double precision = FLOAT(126). |
number/string | the value -3.402E+38 will be saved in Redis target database as the number -340200000000000000000000000000000000000 when Debezium configuration parameter decimal.handling.mode = 'double' |
| long raw | not supported | |
| nchar | string - is Unicode data type that can store Unicode characters | The string 'testing hebrew שלום' will be stored in Redis target database as 'testing hebrew \xd7\xa9\xd7\x9c\xd7\x95\xd7\x9d ' |
| nclob | not supported | |
| number(p,s) | number | 10385274000.32 |
| nvarchar | string - is Unicode data type that can store Unicode characters | The string testing hebrew שלום' will be stored in Redis target database as 'testing hebrew \xd7\xa9\xd7\x9c\xd7\x95\xd7\x9d' |
| raw | not supported | |
| rowid | string | AAAR1QAAOAAAACFAAA |
| timestamp with tz | number | '2021-12-30 14:23:46' will be converted by Debezium to the string '2021-12-30T14:23:46+02:00' and will be stored in Redis target database as the number: 1611878400000 which is the number of ms since epoch |
| urowid | not supported |
PostgreSQL data types
| Source data type | Source data type for HASH | Example for Hash |
|---|---|---|
| box | not supported | |
| cidr | string IPv4 and IPv6 networks addresses. |
'4.35.221.243/32' |
| circle | not supported | |
| domain | string | |
| hstore | string | '{"pages":"368","author":"Katherine Dunn","category":"fiction"}' |
| inet | string IPv4 and IPv6 network addresses |
'4.35.221.243' |
| json | string | "{"guid": "9c36adc1-7fb5-4d5b-83b4-90356a46061a", "name": "Angela Barton", "is_active": null, "company": "Magnafone" "address": "178 Howard Place, Gulf, Washington,702", "registered": "2009-11-07T08:53:22 +08:00", "latitude": 19.793713, "longitude": 86.513373, "tags": ["enim","aliquip","qui" ]}" |
| line | not supported | |
| macaddr | string mac addresses |
'08:00:2b:01:02:03' |
| money | string | When decimal.handling.mode = 'double' the money value -8793780.01 will be received by Debezium as -8793780.01 with double data type, and will be stored in Redis target database as the string'-8793780.01' |
| path | not supported | |
| point | not supported | |
| polygon | not supported | |
| uuid | string | 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11' |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| box | not supported | |
| cidr | string IPv4 and IPv6 networks addresses. |
'4.35.221.243/32' |
| circle | not supported | |
| domain | string | |
| hstore | string | '{"pages":"368","author":"Katherine Dunn","category":"fiction"} |
| inet | string IPv4 and IPv6 network addresses |
'4.35.221.243' |
| json | object | {"guid": "9c36adc1-7fb5-4d5b-83b4-90356a46061a", "name": "Angela Barton", "is_active": null, "company": "Magnafone" "address": "178 Howard Place, Gulf, Washington,702", "registered": "2009-11-07T08:53:22 +08:00", "latitude": 19.793713, "longitude": 86.513373, "tags": ["enim","aliquip","qui" ]} |
| line | not supported | |
| macaddr | string mac addresses |
'08:00:2b:01:02:03' |
| money | string | When decimal.handling.mode = 'double' the money value -8793780.01 will be received by Debezium as -8793780.01, with double data type and will be stored in Redis target database as the number -8793780.01 |
| path | not supported | |
| point | not supported | |
| polygon | not supported | |
| uuid | string | 'a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11' |
SQL server data types
| Source data type | Source data type for HASH | Example for Hash |
|---|---|---|
| bit | string | When value >0 it will be converted by Debezium to true and will be saved in Redis target database as '1' while when value = 0 it will be converted by Debezium to false and will be saved in Redis target database as '0' |
| datetime2 | string Represents the number of milliseconds since the epoch, and does not include timezone information. |
When Debezium configuration parameter time.precision.mode='connect', the value '2018-06-20 15:13:16.945104' will be converted by Debezium to the value '1529507596945104' and will be saved in Redis target database database as the string '1529507596945.104' |
| datetimeoffset | string | When Debezium configuration parameter decimal.handling.mode = 'precision', the datetimeoffset datatype value '12-10-25 12:32:10 +01:00' will be converted to the string '2025-12-10T12:32:10+01:00' and will be saved in Redis target database as 1765366330000 |
| decimal,float,real | string range of values: decimal-10^38 +1 to 10^38,float-1.79E+308 to -2.23E-308, 0 and 2.23E-308 to 1.79E+308,real:- 3.40E + 38 to -1.18E - 38, 0 and 1.18E - 38 to 3.40E + 38 |
When Debezium configuration parameter decimal.handling.mode = 'precision' the value '-3.402E+38' will be converted by Debezium to the binary string '/wAP3QCzc/wpiIGe8AAAAAA=' and will be saved in Redis target database as the string '-340200000000000000000000000000000000000' |
| image | string Variable-length binary data from 0 through 2,147,483,647 bytes. |
|
| money | string range of values: -922,337,203,685,477,5808 to 922,337,203,685,477.5807 |
When Debezium configuration parameter decimal.handling.mode = 'precision' the value 922337203685477.5807 will be converted by Debezium to the binary 'f/////////8=' string and will be saved in Redis target database as the string '922337203685477.5807' |
| nchar | string - fixed-size string data , Unicode data type that can store Unicode characters | |
| nvarchar | string - variable-size string data, Unicode data type that can store Unicode characters | |
| numeric | string range of values - 10^38 +1 to 10^38 |
When Debezium configuration parameter time.precision.mode = 'connect' and decimal.handling.mode = 'precision' , the value 1.00E +33 will be converted by Debezium to the binary string 'SztMqFqGw1MAAAAAAAAAAA==' and will be saved in Redis target database as the string '1000000000000000000000000000000000' |
| rowversion | string data type that exposes automatically generated, unique binary numbers within a database. rowversion is generally used as a mechanism for version-stamping table rows. |
0x00000000000007D0 |
| smalldatetime | string represents the number of milliseconds past the epoch, and does not include timezone information. |
'2018-06-20 15:13:16' will be converted by Debezium to 1529507580000 ms past the epoch and will be saved in Write-behind as the string '1529507580000'. number of seconds: 16 will be not be included in the convertion and will not be saved in Redis target database |
| smallmoney | string range of values: - 214,748.3648 to 214,748.3647 |
When Debezium configuration parameter decimal.handling.mode = 'string' the value -214748.3648 will be converted by Debezium to the string '-214748.3648' and will be saved in Redis target database as '-214748.3648' |
| Spatial Geometry Types | not supported | |
| Spatial Geography Types | not supported | |
| table | not supported | |
| text | Variable-length Unicode data | |
| uniqueidentifier | string | 06BEEF00-F859-406B-9A60-0A56AB81A97 |
| Source data type | Target data type for JSON | Example for JSON |
|---|---|---|
| bit | boolean | When value >0 it will be converted by Debezium to true and will be saved in Redis target database as True while when value = 0 it will be converted by Debezium to false and will be saved in Redis target database as False |
| datetime2 | number Represents the number of milliseconds since the epoch, and does not include timezone |
When Debezium configuration parameter time.precision.mode='connect', the value '2018-06-20 15:13:16.945104' will be converted by Debezium to the value '1529507596945104' and will be saved in Redis target database database as the number 1529507596945.104 |
| datetimeoffset | number | When Debezium configuration parameter decimal.handling.mode = 'precision', the datetimeoffset datatype value '12-10-25 12:32:10 +01:00' will be converted to the string '2025-12-10T12:32:10+01:00' and will be saved in Redis target database as the string 1765366330000 |
| decimal,float,real | number/string | When Debezium configuration parameter decimal.handling.mode = 'precision' the value '-3.402E+38' will be converted by Debezium to the binary string '/wAP3QCzc/wpiIGe8AAAAAA=' and will be saved in Redis target database as the number -340200000000000000000000000000000000000 |
| image | string | |
| money | number/string depending on the value of decimal.handling.mode | When Debezium configuration parameter decimal.handling.mode = 'precision' the value 922337203685477.5807 will be converted by Debezium to the binary 'f/////////8=' string and will be saved in Redis target database as the number 922337203685477.5807 |
| nchar | string | |
| nvarchar | string - variable-size string data, Unicode data type that can store Unicode characters | |
| numeric | number | When Debezium configuration parameter time.precision.mode = 'connect' and decimal.handling.mode = 'precision' , the value 1.00E +33 will be converted by Debezium to the binary string 'SztMqFqGw1MAAAAAAAAAAA==' and will be saved in Redis target database as the number1000000000000000000000000000000000 |
| rowversion | string data type that exposes automatically generated, unique binary numbers within a database. rowversion is generally used as a mechanism for version-stamping table rows. |
0x00000000000007D0 |
| smalldatetime | number represents the number of milliseconds past the epoch, and does not include timezone information. |
'2018-06-20 15:13:16' will be converted by Debezium to 1529507580000 ms past the epoch and will be saved in Write-behind as the number 1529507580000. number of seconds: 16 will be not be included in the convertion and will not be saved in Redis target database |
| smallmoney | number | When Debezium configuration parameter decimal.handling.mode = 'string' the value -214748.3648 will be converted by Debezium to the string '-214748.3648' and will be saved in Redis target database as '-214748.3648' |
| Spatial Geometry Types | not supported | |
| Spatial Geography Types | not supported | |
| table | not supported | |
| text | ||
| uniqueidentifier | string | 06BEEF00-F859-406B-9A60-0A56AB81A97 |
* fields with "not supported" data type will not appear in target hash.