How to use MariaDB's new “Invisible” column type
I have been playing around with this new column type. The use case being that I want to hide this column from a client issuing a "Select *" query.
But the column seems to behave like any normal column and is not hidden. I have enabled the Invisible column type by using the following command:
ALTER TABLE MyTable ADD COLUMN `TestA` INT INVISIBLE;
Reading up in the MariaDB documentation, the examples provided are only with Create statements. Which makes me wonder if one can only enable this feature when creating a table and NOT with an Alter statement. Can anybody shed some light?
mariadb-10.3
asked 7 mins ago
ChrisFChrisF
31
add a comment |
I have been playing around with this new column type. The use case being that I want to hide this column from a client issuing a "Select *" query.
But the column seems to behave like any normal column and is not hidden. I have enabled the Invisible column type by using the following command:
ALTER TABLE MyTable ADD COLUMN `TestA` INT INVISIBLE;
Reading up in the MariaDB documentation, the examples provided are only with Create statements. Which makes me wonder if one can only enable this feature when creating a table and NOT with an Alter statement. Can anybody shed some light?
mariadb-10.3
asked 7 mins ago
ChrisFChrisF
31
add a comment |
I have been playing around with this new column type. The use case being that I want to hide this column from a client issuing a "Select *" query.
But the column seems to behave like any normal column and is not hidden. I have enabled the Invisible column type by using the following command:
ALTER TABLE MyTable ADD COLUMN `TestA` INT INVISIBLE;
Reading up in the MariaDB documentation, the examples provided are only with Create statements. Which makes me wonder if one can only enable this feature when creating a table and NOT with an Alter statement. Can anybody shed some light?
mariadb-10.3
asked 7 mins ago
ChrisFChrisF
31
I have been playing around with this new column type. The use case being that I want to hide this column from a client issuing a "Select *" query.
But the column seems to behave like any normal column and is not hidden. I have enabled the Invisible column type by using the following command:
ALTER TABLE MyTable ADD COLUMN `TestA` INT INVISIBLE;
Reading up in the MariaDB documentation, the examples provided are only with Create statements. Which makes me wonder if one can only enable this feature when creating a table and NOT with an Alter statement. Can anybody shed some light?
mariadb-10.3
mariadb-10.3
asked 7 mins ago
ChrisFChrisF
31
asked 7 mins ago
ChrisFChrisF
31
asked 7 mins ago
ChrisFChrisF
31
asked 7 mins ago
ChrisFChrisF
31
asked 7 mins ago
ChrisFChrisF
31
31
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "182"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f230917%2fhow-to-use-mariadbs-new-invisible-column-type%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Database Administrators Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f230917%2fhow-to-use-mariadbs-new-invisible-column-type%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
