SQL query to PostgeSQL tables [duplicate] - sql

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Closed 2 years ago.
I have a problem.
SELECT *
FROM posts CROSS JOIN public."postReactions" AS reactions
WHERE posts.userId = '423abb9e-a00d-4045-9e88-4a85897f67e4'
But the response from DB is like 'ERROR: column posts.userid doesn't exist.
LINE 3: WHERE posts.userId = '423abb9e-a00d-4045-9e88-4a85897f67e4'.
Result of CROSS JOIN below:
Posts table
PostReactions table
Sequelize models below:
export default models => {
const {
User,
Post,
PostReaction,
PostNegativeReaction,
Comment,
Image
} = models;
User.hasMany(Post);
User.hasMany(PostReaction);
Post.belongsTo(User);
Post.hasMany(PostReaction);
PostReaction.belongsTo(Post);
PostReaction.belongsTo(User);
};
This is my associations:
export default {
up: (queryInterface, Sequelize) => queryInterface.sequelize
.transaction(transaction => Promise.all([
queryInterface.addColumn('posts', 'userId', {
type: Sequelize.UUID,
references: {
model: 'users',
key: 'id'
},
onUpdate: 'CASCADE',
onDelete: 'SET NULL'
}, { transaction }),
queryInterface.addColumn('postReactions', 'userId', {
type: Sequelize.UUID,
references: {
model: 'users',
key: 'id'
},
onUpdate: 'CASCADE',
onDelete: 'SET NULL'
}, { transaction }),
queryInterface.addColumn('postReactions', 'postId', {
type: Sequelize.UUID,
references: {
model: 'posts',
key: 'id'
},
onUpdate: 'CASCADE',
onDelete: 'SET NULL'
}, { transaction }),
])),
down: queryInterface => queryInterface.sequelize
.transaction(transaction => Promise.all([
queryInterface.removeColumn('posts', 'userId', { transaction }),
queryInterface.removeColumn('postReactions', 'userId', { transaction }),
queryInterface.removeColumn('postReactions', 'postId', { transaction })
]))
};
MERN stack.
Main problem: how to do a request to db that will receive the response with POSTS body (only liked by the current user).

Answer 1

This would be possible if the table were created using escaped column names . . . "postId" rather than postId.
I suspect that is the problem. The best solution is to recreate the table and not escape any identifiers, ever. Alternatively, you can use the escaped column name.