postgresql

问题 CREATE TABLE countrymeasurements ( countrycode int NOT NULL, countryname character varying(30) NOT NULL, languagename character varying (30) NOT NULL, daysofoperation character varying(30) NOT NULL, salesparts bigint, replaceparts bigint ) PARTITION BY LIST(countrycode) ( partition india values(1), partition japan values(2), partition china values(3), partition malaysia values(4) ); I am getting ERROR: syntax error at or near "(". What i am missing here. I am using postgres12 回答1: I don't

问题 I m using Nestjs + sequelize-typescript + postgresql. I would like to select rows in table that content contains specific word. this is my code : async findUsers(searchedWord: string): Promise<users[]> { return await this.USER_REPOSITORY.findAll({ attributes: [ 'id', 'name' ], where: { content: '%'+ searchedWord +'%' }, order: [ [ 'id', 'ASC' ] ] }); } } but this method didn't work ! Any suggestions ? 来源： https://stackoverflow.com/questions/59533244/sequelize-typescript-querying-if-string

问题 I'm trying to connect google cloud function with google cloud sql (postgreSQL). I found document and do exactly same things with document (I think...) but I got error. https://cloud.google.com/sql/docs/postgres/quickstart-connect-functions my cloud function requirements.txt SQLAlchemy==1.3.12 pg8000==1.13.2 and my main.py import sqlalchemy # Set the following variables depending on your specific # connection name and root password from the earlier steps: connection_name = "tram-2020:us

问题 Assume I have a table called "Diary" like this: | id | user_id | recorded_at | record | |----|---------|--------------------------|--------| | 20 | 50245 |2017-10-01 23:00:14.765366| 89 | | 21 | 50245 |2017-12-05 10:00:33.135331| 97 | | 22 | 50245 |2017-12-31 11:50:23.965134| 80 | | 23 | 76766 |2015-10-06 11:00:14.902452| 70 | | 24 | 76766 |2015-10-07 22:40:59.124553| 81 | For each user I want to retrieve the latest row and all rows within one month prior to that. In other words, for user_id

问题 Our app accepts user text input which we then save to a server-side database. In iOS 11 when you enter two "-" characters in a row they are automatically combined into an emdash (—). When you enter three "-" characters in a row you end up with an emdash + a half emdash which has an invalid terminator. This is causing issues for my rails server which cannot parse this string because it is invalid. The string looks like this: \xE2\x80\x94\x00 回答1: 'Smart dashes' as it is called, is the process

问题 Our app accepts user text input which we then save to a server-side database. In iOS 11 when you enter two "-" characters in a row they are automatically combined into an emdash (—). When you enter three "-" characters in a row you end up with an emdash + a half emdash which has an invalid terminator. This is causing issues for my rails server which cannot parse this string because it is invalid. The string looks like this: \xE2\x80\x94\x00 回答1: 'Smart dashes' as it is called, is the process

问题 I have a table like this: Table: survey | formula | var1 | var2 | var3 | |------------------------|-------|--------|--------| | var1 + var2 | 12 | 9 | 2 | | var3 * (var1 * var2) | 20 | 10 | 1 | The trick is that the values inside column formula can be used as the SELECT clause against its row to get the final score, for example: SELECT var1 + var2 FROM (VALUE ('var1 + var2', 12, 9, 2) AS t(formula, var1, var2, var3) I am working on a sql procedure to dynamically compute the score for each row

问题 I am trying to migrate data from postgresql server to elasticsearch. The postgres data is in JSONB format. When I am starting the river, I am getting the below error. [INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600} [2019-01-07T14:22:34,625][INFO ][logstash.inputs.jdbc ] (0.128981s) SELECT to_json(details) from inventory.retailer_products1 limit 1 [2019-01-07T14:22:35,099][WARN ][logstash.inputs.jdbc ] Exception when executing JDBC query {:exception=>#<Sequel:

问题 Source & target tables are similar. Target table has a UUID field that is computed in tMap, however the flow should not insert duplicate persons in target i.e unique (firstname,lastname,dob,gender) . I tried marking those columns as key in tMap as in below screenshot, but that does not prevent duplicate inserts. How can I avoid duplicate inserts without adding unique constraint on target? I also tried "using field" in target. Edit: Solution as suggested below: 回答1: The CDC components in the

问题 Source & target tables are similar. Target table has a UUID field that is computed in tMap, however the flow should not insert duplicate persons in target i.e unique (firstname,lastname,dob,gender) . I tried marking those columns as key in tMap as in below screenshot, but that does not prevent duplicate inserts. How can I avoid duplicate inserts without adding unique constraint on target? I also tried "using field" in target. Edit: Solution as suggested below: 回答1: The CDC components in the